Question 1

Is MOA-4 (AEO-4) harmful to humans? Does it have an impact on the environment?

Accepted Answer

MOA-4 (AEO-4) has certain irritant hazards to humans, is harmful to aquatic life with long-lasting effects, but under normal industrial use, risks can be effectively controlled through standardized operations. Detailed Explanation Effects on Human Health According to the Safety Data Sheet (SDS) from Guoli Chemical, the GHS hazard classification of MOA-4 (AEO-4) includes: Skin corrosion\/irritation Category 2 (H315: Causes skin irritation) and Serious eye damage\/eye irritation Category 2A (H319: Causes serious eye irritation). This indicates that the product is not highly toxic or corrosive, but may cause significant irritation to skin and eyes upon direct contact. Its signal word is "Warning", pictogram is GHS07 (exclamation mark), belonging to a moderate hazard level. In normal industrial application scenarios, as long as operators wear personal protective equipment such as impermeable gloves, protective clothing, and chemical safety goggles according to safety regulations, and operate in well-ventilated environments, the actual harm of MOA-4 to humans is controllable. The product is not flammable, not explosive, has no acute toxicity or carcinogenic classification, and its overall safety is at a conventional level among similar nonionic surctants. Special attention should be paid: if skin contact occurs, rinse immediately with plenty of water and soap for at least 15 minutes; if it enters the eyes, rinse carefully for several minutes, remove contact lenses if worn and continue rinsing; seek medical attention if irritation persists. Environmental Impact The GHS environmental hazard classification of MOA-4 (AEO-4) is Hazardous to the aquatic environment - Long-term hazard Category 3 (H412: Harmful to aquatic life with long lasting effects). This is the lowest level in environmental hazard classification, indicating that the product poses a potential risk to aquatic ecosystems, but the degree of hazard is relatively controllable. Although the product is biodegradable, it may have negative effects on aquatic organisms such as fish, aquatic invertebrates, and algae before degradation is complete. Therefore, during storage, use, and disposal, it is strictly necessary to prevent the product from being directly discharged into sewers, surce water, or soil without treatment. In case of leakage, use inert absorbent materials such as sand, vermiculite for collection, and dispose of according to hazardous waste regulations; firefighting wastewater should also be collected and treated, and not directly discharged. It is recommended that qualified professional waste disposal agencies perform incineration or other compliant disposal to minimize long-term environmental impact. Key Safety Operating Points Body PartProtective MeasuresKey Instructions SkinImpermeable gloves, protective clothingThoroughly clean exposed areas after work EyesChemical safety goggles, ce protectionIf accidentally enters eyes, rinse immediately for several minutes BreathingOperate in well-ventilated area, local exhaust if necessaryAvoid inhalation of vapors or mists EnvironmentSpill containment trays, dikes, absorbent materialsStrictly avoid discharge into water or soil Application Recommendations As a nonionic surctant, the safety risk of MOA-4 (AEO-4) is entirely within acceptable limits for industrial applications. In fields such as household liquid detergents, industrial cleaners, textile printing and dyeing auxiliaries, leather degreasers, and pesticide emulsifiers, after dilution in formulations, the irritation of the end product is significantly reduced. It is recommended that formulation engineers when using: Strictly follow SDS requirements during pure product handling, wear complete personal protective equipment Store in a cool, dry, well-ventilated warehouse, keep containers sealed When designing end product formulations, fully consider the mitigating effect of dilution ratio on irritation Industrial wastewater must be treated to meet standards before discharge; do not directly enter environmental waters Precautions This product is classified under GHS as Skin irritation Category 2 and Eye irritation Category 2A, non-corrosive, non-highly toxic substance Environmental hazard level is Aquatic long-term hazard Category 3, need to prevent direct discharge into environmental waters This product is not flammable, but under high temperature or fire conditions may release irritating or toxic gases Empty containers may have product residue, keep sealed until professional disposal, do not discard arbitrarily Store separately from strong oxidizers, strong acids, strong bases to avoid cross-reaction risks

Question 2

What should I do if problems occur during the use of MOA-4 (AEO-4)? How to obtain technical support?

Accepted Answer

For problems with MOA-4 (AEO-4), first refer to the product safety data sheet for troubleshooting. Common issues are mostly related to operating conditions, storage environment, or formulation compatibility. If in-depth technical support is needed, it is recommended to contact the Guoli Chemical technical team for targeted solutions. Detailed Description MOA-4 (AEO-4), as a mature nonionic surctant, performs stably under normal use conditions. However, in practical applications, problems may arise due to improper operation, environmental ctors, or differences in compounding systems. The following summarizes common issues and countermeasures based on technical data from the Guoli Chemical product database: Skin or eye contact discomfort: MOA-4 is classified as GHS Skin Irritation Category 2 and Eye Irritation Category 2A. In case of accidental contact, immediately rinse the affected area with plenty of water for at least 15 minutes (for eye rinsing, keep eyelids open; if wearing contact lenses, remove them after about 5 minutes of rinsing and continue rinsing). Do not use ointments or eye drops. If irritation persists, seek medical attention immediately and present the product container or label. Always wear personal protective equipment such as impermeable gloves and chemical safety goggles during operation. Unsatisctory emulsification or unstable emulsion: The HLB value of MOA-4 is approximately 9-10, suitable for O/W emulsion systems. If stratification or demulsification occurs, check the compatibility of the oil phase type with the HLB of MOA-4, whether the emulsifier dosage is sufficient (generally recommended at 5%-10% of the oil phase weight, optimized based on the specific system), and whether the emulsification process conditions (e.g., homogenization speed, temperature, feeding sequence) are reasonable. If necessary, compound with other HLB surctants to broaden the emulsification range. Abnormal product appearance (turbidity, stratification, precipitation): The normal appearance of MOA-4 is a colorless to slightly yellow transparent liquid. If the product becomes turbid or stratified, it is likely due to low storage temperature — nonionic surctants may gel or precipitate at low temperatures. Allowing the product to return to room temperature (15-30°C) with gentle stirring usually restores transparency. If heating ils to restore it, it may be due to water ingress or impurity contamination from a poorly sealed container. Isolate the batch and contact the supplier for disposal. Store the product in a cool, dry, ventilated area, and keep the container sealed. Quick Troubleshooting Table for Common Issues IssuePossible CauseRecommended Action Skin/eye irritationDirect contact without protective equipmentImmediately rinse with plenty of water for ≥15 minutes; seek medical attention if severe Emulsion stratification/demulsificationHLB mismatch or insufficient dosageAdjust emulsifier ratio or compounding scheme Product turbidity/gelationPrecipitation due to low-temperature storageReturn to room temperature and stir gently Insufficient detergency/penetrationLow dosage or hard waterIncrease dosage; consider adding chelating agent Excessive foam (in undesired scenarios)High MOA-4 concentration in the systemReduce addition ratio appropriately or add defoamer Turbidity after compounding with anionic auxiliariesImproper compounding ratio or feeding sequenceAdjust feeding sequence; control pH range Application Recommendations Pre-use verification: Before large-scale production, it is recommended to conduct small-scale trials to verify the compatibility and performance of MOA-4 in the specific formulation, especially when compounding with anionic, cationic, or amphoteric surctants. Pay attention to the feeding sequence and pH conditions to avoid precipitation or ilure due to improper compounding. Dosage reference: The recommended dosage range for MOA-4 varies by application (specific levels need experimental optimization): household liquid detergent: 2%-8%; industrial cleaner: 5%-15%; textile penetrant: 3%-10g/L; pesticide emulsifier: 8%-15% of oil phase; emulsion polymerization: 1%-4% of monomer weight. Process considerations: MOA-4 has increased viscosity at low temperatures. For winter use, pre-store in a warm environment or heat with a warm water bath (not exceeding 50°C) to cilitate handling and feeding. In processes requiring high emulsion stability, such as emulsion polymerization, add slowly and maintain sufficient stirring. Technical Support Channels Guoli Chemical provides full technical support for all products. According to the product database, if you encounter technical issues during the use of MOA-4 (AEO-4), you can obtain support through the following methods: Contact business representative: Contact your Guoli Chemical sales manager or regional business representative, who can coordinate the technical team to provide one-on-one solutions. Provide product lot number and problem description: When seeking technical support, prepare the product lot number, purchase date, and detailed description of the problematic batch (including formulation system, operating conditions, photos or samples of abnormal phenomena) to help technical personnel quickly locate the issue. Sample testing service: If a quality issue with the batch is suspected, send retained samples to the Guoli Chemical quality inspection department for re-analysis. On-site technical support: For major application problems, Guoli Chemical can arrange technical personnel to inspect process conditions on-site and assist in optimizing formulation and process parameters. Precautions In the event of a safety incident (e.g., large spill, ingestion, severe eye contact), take emergency measures and seek medical attention immediately, and present the product Safety Data Sheet (SDS) or label to the doctor. In case of product leakage, absorb and collect with inert materials such as sand or vermiculite, place in a sealed container, and dispose of as hazardous waste. Do not discharge into drains or water bodies. Empty containers may contain residual product; keep them sealed until professional disposal. Do not discard or reuse for other purposes. The database does not include specific technical support hotline or email addresses for Guoli Chemical. It is recommended to contact the company directly through official contract documents or contact information on packaging labels.

Question 3

How to purchase MOA-4 (AEO-4)? What is the minimum order quantity?

Accepted Answer

MOA-4 (AEO-4) needs to be directly purchased through the sales team of Guoli Chemical. Please contact sales for the specific minimum order quantity and quotation. Detailed Description MOA-4 (AEO-4, CAS No.: 68439-50-9) is one of the core conventional products of Haian Guoli Chemical Co., Ltd. As a tty alcohol polyoxyethylene ether nonionic surctant, it has stable demand in fields such as industrial cleaning, textile printing and dyeing, leather processing, and pesticide formulations, with sufficient supply guarantee. According to the Guoli Chemical database information, this product currently does not have an online direct ordering channel. All purchases need to be coordinated through the company's sales team. This is because the quotation for chemical raw material products is affected by multiple ctors such as raw material cost fluctuations, purchase volume, and transportation distance, requiring sales personnel to provide a one-to-one quotation plan based on your specific needs. Regarding the minimum order quantity (MOQ), there is no fixed value recorded in the database. However, based on the product packaging specifications, MOA-4 is available in three packaging forms: 50kg plastic drums, 200kg plastic drums, and IBC totes. The smallest individual packaging is 50kg, and the actual minimum order quantity may be set accordingly or flexibly negotiated based on the customer type. Procurement Information Summary ItemDetails Product Full NameC12-14 Alcohol Polyoxyethylene (4) Ether (MOA-4 / AEO-4) CAS No.68439-50-9 Active Content≥99% Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote PricePlease contact the sales team for the latest quotation Minimum Order QuantityThis parameter is not available in the database, please contact sales for confirmation Procurement Suggestions It is recommended that before contacting the sales team, you clarify the following information in advance to obtain an accurate quotation: Estimated annual/quarterly usage volume: Helps sales match the best price tier; Target application field: Such as industrial cleaning, textile printing and dyeing, or emulsion polymerization. Sales can recommend the most suitable grade or supporting products; Packaging preference: 50kg small drums are suitable for sampling or small batch trials, while IBC totes are suitable for large-scale production; Delivery address: Used to calculate logistics plans and freight costs. Notes MOA-4 is a non-hazardous chemical, but it has skin/eye irritation (GHS07 classification). During transportation and storage, care should be taken to prevent leakage and keep away from water sources. For the first purchase, it is recommended to request product samples for formula compatibility testing. Guoli Chemical can usually provide free sample support if needed.

Question 4

Is MOA-4 (AEO-4) environmentally compliant? Can a test report be provided?

Accepted Answer

MOA-4 (AEO-4) contains a substance harmful to aquatic organisms (H412) and must be properly disposed of to meet environmental compliance requirements; the test report must be separately requested from Guoli Chemical. Detailed Description The environmental compliance of MOA-4 (AEO-4) needs to be understood from two aspects. First, according to the GHS classification standard, this product is classified as Hazardous to the aquatic environment - long-term hazard Category 3 (H412), i.e., "Harmful to aquatic life with long lasting effects." This means that untreated MOA-4 is not allowed to be directly discharged into water bodies. In normal industrial use, it should be ensured that it enters a wastewater treatment system or is handed over to a qualified agency for compliant disposal, rather than being directly released into the environment. On the other hand, as a non-ionic surctant, the tty alcohol chain and polyoxyethylene ether chain in the molecular structure of MOA-4 have a certain degree of biodegradability in the environment. After effective treatment in sewage treatment cilities, its environmental impact can be significantly reduced. Therefore, under the premise of standardized operation and proper handling, MOA-4 can meet current environmental compliance requirements. However, enterprises should strictly comply with national and local regulations on hazardous waste management and wastewater discharge during use. Regarding the test report, the current product database does not include third-party environmental test reports for MOA-4 (such as biodegradability reports, ROHS tests, REACH compliance reports, etc.). To obtain an official test report, it is recommended to directly contact the sales or technical department of Hai'an Guoli Chemical Co., Ltd., specify the type of report required (e.g., SGS test report, updated MSDS, VOC test, biodegradability report, etc.), and the manucturer will provide the latest version. Technical Parameters ItemParameter/Description Product NameMOA-4 (AEO-4) CAS No.68439-50-9 Chemical TypeNon-ionic surctant (tty alcohol polyoxyethylene ether) GHS Environmental ClassificationHazardous to the aquatic environment - long-term hazard Category 3 (H412) BiodegradabilityHas a certain degree of biodegradability (specific degradation rate subject to test report) Test ReportNot recorded in database; need to request from manucturer. Application Recommendations When using MOA-4, it is recommended that enterprises take the following environmental compliance measures: Wastewater containing MOA-4 generated during the production process should be discharged into the ctory's wastewater treatment station, treated to meet standards, and then discharged; direct discharge is strictly prohibited. Spilled material should be immediately collected with inert absorbent materials such as sand or vermiculite, and disposed of as hazardous waste by a qualified agency. Product containers and packaging must not be discarded arbitrarily; they should be centrally collected and disposed of according to hazardous waste management regulations. If used in export product formulations, it is recommended to confirm the chemical environmental regulations of the destination country/region (e.g., EU REACH, US TSCA) in advance, and obtain corresponding compliance declarations or test reports from Guoli Chemical. Notes The H412 classification indicates long-term hazard to aquatic organisms. Do not discharge undiluted or untreated product into sewers, rivers, lakes, or soil. Test reports need to be customized according to specific uses and customer requirements. Different test items (such as ROHS, REACH, PAHs, biodegradability, etc.) have different costs and lead times. It is recommended to communicate with Guoli Chemical in advance to confirm. Environmental regulations are constantly updated. It is recommended to regularly monitor changes in relevant standards to ensure continuous compliance of product use.

Question 5

What are the advantages of MOA-4 (AEO-4) compared to similar products?

Accepted Answer

According to the technical data of Guoli Chemical, the core advantages of MOA-4 (AEO-4) compared to similar products (such as AEO-3, AEO-7, AEO-9, or isomeric alcohol ethers, etc.) lie in its precise hydrophilic-lipophilic balance, excellent low-temperature emulsification and penetration ability, and high-purity compatibility as a key chemical intermediate (for synthesizing AES).This product specializes in oil emulsification and efficient penetration. Its performance is determined by the specific structure of C12-14 tty alcohol chain and the addition number of 4 ethylene oxide units, forming a unique combination of properties.The following is a detailed technical and performance comparison description:### Core Advantage ComparisonIn the AEO (tty alcohol polyoxyethylene ether) series, different ethylene oxide (EO) addition numbers determine the different application directions of the products. MOA-4 is located in a precise application sweet spot.| Technical Parameters & Application Comparison | MOA-4 (AEO-4) | AEO-3 | AEO-7 | AEO-9 | Isomeric Alcohol Ethers (e.g., TO series) || :--- | :--- | :--- | :--- | :--- | :--- || HLB Value Range | Approx. 9-10 | Approx. 8 | Approx. 12 | Approx. 13 | Approx. 10-14 (depending on type) || Hydrophilic-Lipophilic Nature | Mainly lipophilic, with some hydrophilicity | Strongly lipophilic | Good hydrophilicity | Strongly hydrophilic | Both, but higher cost || Core Performance | Emulsification, penetration, dispersion, low foam | Emulsification, defoaming | Wetting, dispersion, detergency | Detergency, emulsification, foam stabilization | Penetration, emulsification, alkali resistance || State in Water | Dispersible in water | Insoluble in water | Soluble in water | Easily soluble in water | Dispersible to transparent || Unique Advantages | 1. Efficient O/W emulsification2. Strong low-temperature penetration3. Key intermediate for AES synthesis | Efficient W/O emulsification | Detergency and cleaning | Hydrophilic emulsification and detergency | Excellent penetration and alkali resistance |### Detailed Description1. Precise HLB Value and Efficient O/W Emulsification Capacity The HLB value of MOA-4 is approximately 9-10, which is key to its excellent performance as an oil-in-water (O/W) emulsifier. Compared to AEO-3 (HLB approx. 8, commonly used in water-in-oil systems), it can stably disperse a wider variety of oil phases (such as mineral oil, white oil, tty acids, etc.) in water, forming a milky white, stable emulsion. Its emulsification efficiency is superior to AEO-7/9, which require higher EO numbers to achieve the same effect, and due to its stronger lipophilicity, it has better affinity for oils and ts.2. Prominent Low Foam and Low-Temperature Penetration In industrial cleaning and textile pretreatment processes, excessive foam is a common problem. MOA-4 is a low-foaming nonionic surctant. Compared to AEO-9, which has strong detergency but rich foam, it can significantly reduce operational foam while ensuring oil removal, lowering the difficulty of rinsing. It is especially suitable for processes such as spray cleaning. At the same time, its molecular structure allows it to quickly penetrate into fibers or dirt at room temperature or low temperatures. This performance is superior to AEO-7/9, which are more hydrophilic and have limited activity at low temperatures.3. High-Purity Compatibility as a Key Intermediate for AES This is a highly valuable industrial use of MOA-4. As the core raw material for synthesizing the anionic surctant tty alcohol polyoxyethylene ether sulte (AES), the high purity and precise EO number distribution of MOA-4 can ensure the conversion rate of subsequent sulfonation and neutralization reactions and the stable quality of the final AES product. Its reactivity is mild and controllable, with few by-products, making it an ideal choice for producing high-quality AES. In contrast, AEO-7/9 are too hydrophilic after sulfonation, while AEO-3 may increase product irritation after sulfonation, limiting their application range.### Application SuggestionsWhen selecting a surctant, if your application scenario matches the following characteristics, MOA-4 will be a better choice than AEO-7/9 or NP/TX-10 and similar products:- For emulsification: Need to stably emulsify oily components in a water-based system, such as pesticide emulsifiable concentrates, emulsion polymerization, metalworking fluids.- Require low-foam cleaning: In high-pressure spray cleaning, CIP cleaning, etc., the product is required to have strong oil-removing ability, but the foam must be easy to control.- Require rapid penetration: In processes such as textile pretreatment and leather degreasing, the working fluid needs to quickly and evenly penetrate into the material matrix.- As a synthesis raw material: When producing AES or other modified surctants requiring a specific EO chain length, MOA-4 is an indispensable structural unit.### Precautions- Causes skin and eye irritation. Be sure to wear gloves and protective goggles during operation.- Harmful to aquatic life. Untreated waste liquid must be strictly prohibited from discharging into water bodies.- As a nonionic surctant, the cloud point of its aqueous solution is affected by temperature. When preparing the working solution, pay attention to the operating temperature range to avoid the product precipitating out of water due to exceeding the cloud point, which would affect performance.- The product may have increased viscosity or appear turbid at low temperatures. This is a normal physical phenomenon. It can be restored by appropriately warming and stirring before use, and does not affect product performance.

Question 6

How to store MOA-4 (AEO-4)? What is the shelf life?

Accepted Answer

MOA-4 (AEO-4) should be stored sealed in a cool, dry, and well-ventilated place. Under compliant storage conditions, the shelf life is typically 1-2 years (it is recommended to refer to the ctory's quality inspection certificate for specific shelf life). Detailed Description MOA-4 (AEO-4) is a chemically stable nonionic surctant with resistance to acids, alkalis, and hard water (source: Guoli Chemical Product Database). Under proper storage conditions, the product can maintain its core properties such as emulsification, penetration, and dispersion for an extended period. It should be noted that the product's freezing point is about 5°C, so attention should be paid to antifreeze in low-temperature winter environments to avoid inconvenience in use after solidification. However, solidification does not cause substantial damage to product quality; simply warm it to room temperature and stir evenly to restore normal use. According to the requirements of Part 3 of the Safety Data Sheet (SDS) of Guoli Chemical, the storage of MOA-4 (AEO-4) should strictly follow the following conditions: store in a cool, dry, and well-ventilated warehouse, away from heat sources, sparks, and open flames; keep containers sealed to prevent moisture and impurities from entering; store separately from strong oxidizers, strong acids, strong bases, food, feed, etc., to avoid cross-contamination; the storage area should have corrosion-resistant and leak-proof flooring, and be equipped with emergency spill containment devices (such as trays or dikes). Regarding the shelf life, the Guoli Chemical Product Database does not currently provide explicit shelf life data. According to industry practice and the chemical stability of this product (resistance to acids, alkalis, hard water, active content ≥99%), under the above storage conditions and with intact packaging, MOA-4 (AEO-4) can typically be stored stably for 1-2 years. It is recommended to refer to the shelf life indicated on the product's Certificate of Analysis (COA) and to check the product appearance before use (it should be a colorless to slightly yellow transparent liquid). If turbidity, stratification, or abnormal color changes are observed, quality re-testing should be conducted before deciding whether to use. Summary of Storage Conditions Storage ElementSpecific RequirementsData Source Storage EnvironmentCool, dry, well-ventilated warehouseGuoli Chemical SDS Temperature RequirementsStay away from heat sources, pay attention to antifreeze (freezing point approx. 5°C)Guoli Chemical Product Database Container ConditionKeep sealed to prevent ingress of moisture and impuritiesGuoli Chemical SDS Away from Ignition SourcesAway from heat sources, sparks, and open flames (flash point >180°C closed cup)Guoli Chemical Product Database Segregation RequirementsStore separately from strong oxidizers, strong acids, strong bases, food, and feedGuoli Chemical SDS Spill ProtectionSet up leak-proof flooring, equipped with trays or dikesGuoli Chemical SDS Environmental RequirementsAway from drainage systems, surce water, and soilGuoli Chemical SDS Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC toteGuoli Chemical Product Database Shelf LifeNo official value yet, industry practice is 1-2 years (based on COA)Industry General Reference Application Recommendations It is recommended to establish a "First In, First Out" inventory management system and regularly check the integrity of packaging drums and labels. For products stored for a long time, it is advised to perform a small-scale test before use, focusing on verifying whether emulsifying power, permeability, and appearance meet the formulation requirements. If a small amount of stratification or slight turbidity is found in the drum (especially under low-temperature conditions), it is usually a normal physical phenomenon; it can be restored by warming to 20-25°C and stirring evenly. There is no need to directly judge it as unqualified. Precautions Empty containers may contain product residues. Keep sealed until professional disposal. Do not discard arbitrarily or use for other purposes. The product is harmful to aquatic life with long-lasting effects (GHS H412 classification). Prevent undiluted product or spills from entering sewers, surce water, and soil. If a spill occurs during storage, collect using inert absorbent materials such as sand, vermiculite, etc., place in a sealed container, and dispose of according to hazardous waste regulations. The product is not flammable, but decomposition products under fire conditions may be irritating or toxic. Firefighters should wear self-contained positive pressure breathing apparatus.

Question 7

What safety precautions should be taken when using MOA-4 (AEO-4)?

Accepted Answer

MOA-4 (AEO-4) is a low-toxicity nonionic surctant, but it has skin/eye irritation and aquatic environmental hazards. Protective equipment must be worn during operation, and direct contact and discharge into water bodies must be avoided. Detailed Description MOA-4 (AEO-4) is chemically stable and non-flammable under normal use conditions, but its GHS hazard classification is: Skin corrosion\/irritation Category 2 (H315: Causes skin irritation), Serious eye damage\/eye irritation Category 2A (H319: Causes serious eye irritation), and Hazardous to the aquatic environment - long-term hazard Category 3 (H412: Harmful to aquatic life with long lasting effects). The product label uses the GHS07 exclamation mark pictogram, with the signal word "Warning", so safety protection cannot be ignored in industrial production and formulation operations. From a chemical management perspective, the safety risks of MOA-4 are mainly concentrated in two aspects: exposure contact and environmental release. Contact exposure can lead to skin redness, pain, and severe eye discomfort; environmentally, if the undiluted product is directly discharged into sewers or water bodies, it will cause long-term negative impacts on aquatic ecosystems. Therefore, operators should receive relevant safety training and fully understand the product characteristics before starting work. Safe Handling Guidelines Personal Protective Equipment (PPE) Requirements When handling MOA-4, the following protective equipment must be worn: Impermeable gloves: Nitrile or neoprene rubber gloves are recommended to avoid direct skin contact with the product Chemical safety goggles: To prevent splashes from entering the eyes, add a ce shield if necessary Protective clothing: Wear long-sleeved work clothes to avoid exposed skin Respirator: Use in poorly ventilated areas or environments where aerosols may be generated Operating Environment Requirements Operations should be carried out in a well-ventilated area, and local exhaust ventilation should be activated when necessary Eating, drinking, and smoking are strictly prohibited in the workplace Containers should be handled carefully during opening, transfer, and disposal to prevent leaks and splashes After work, thoroughly wash hands, forearms, ce, and other potentially exposed areas Contaminated clothing should be washed clean before reuse Storage Requirements Store in a cool, dry, well-ventilated warehouse, away from heat sources, sparks, and open flames Keep containers sealed to prevent moisture and impurities from entering Store separately from strong oxidizers, strong acids, strong bases, as well as food and feed The storage area should have corrosion-resistant, leak-proof flooring and be equipped with emergency spill containment devices (such as trays or berms) Keep away from drainage systems, surce water, and soil to prevent long-term environmental hazards from spills Empty containers may contain product residues; keep sealed until professional disposal, do not discard arbitrarily or use for other purposes Emergency Response Measures Contact TypeEmergency Treatment Method Skin contact Immediately remove contaminated clothing and flush skin with plenty of water and soap for at least 15 minutes; if irritation persists or redness and pain occur, seek medical attention immediately Eye contact Immediately rinse with plenty of water or physiological saline for at least 15 minutes, carefully lifting the eyelids (if wearing contact lenses, remove after about 5 minutes of rinsing and continue rinsing); keep eyelids open; do not apply ointments or eye drops on your own; seek medical attention immediately Inhalation Move the affected person to fresh air immediately and maintain an open airway; administer oxygen if breathing discomfort occurs; if breathing is difficult or stops, trained personnel should perform artificial respiration and seek medical attention immediately Ingestion Rinse mouth with water immediately, do not induce vomiting (to avoid aspiration); seek medical attention immediately and show the product container or label to the doctor Spill handling Immediately isolate the contaminated area; handling personnel must wear full PPE; cover and collect the spilled liquid with inert absorbent materials such as sand, vermiculite, etc.; place in a sealed container and dispose of as hazardous waste; prevent spills from entering sewers and water bodies; notify environmental authorities for large spills Fire response This product is non-flammable, but decomposition products in a fire may be irritating\/toxic; firefighters must wear self-contained positive pressure respirators and full protective suits; extinguishing media may include water fog, alcohol-resistant foam, dry powder, or carbon dioxide; collect contaminated firefighting water and avoid direct discharge into the environment Disposal Requirements MOA-4 and its containers, as well as contaminated absorbent materials, should be disposed of in accordance with local, national, and international hazardous waste management regulations. Do not pour into sewers, surce water, or soil. It is recommended to have them incinerated or otherwise properly disposed of by a qualified professional waste treatment organization. Wastewater generated from cleaning up spills must also be collected and treated as hazardous waste. Key Precautions Three essential protections: Wear gloves, safety goggles, and protective clothing (P280) Emergency key: In case of eye contact, rinse immediately for at least 15 minutes and seek medical attention (P305+P351+P338); if irritation persists, consult a doctor (P337+P313) Environmental bottom line: Do not discharge undiluted product directly into sewers, surce water, or soil; it has long-lasting harmful effects on aquatic life (H412) Post-work cleaning: Thoroughly wash exposed areas after work (P264), change and wash contaminated clothing

Question 8

How to use MOA-4 (AEO-4)? What is the recommended dosage?

Accepted Answer

MOA-4 (AEO-4) should be added directly to the formulation in appropriate proportions depending on the application area. It is typically used as an emulsifier, penetrant, or dispersant component. The specific dosage varies by application and is recommended to be optimized through experiments. Detailed Description MOA-4 (AEO-4) is a nonionic surctant based on C12-14 tty alcohols. It appears as a colorless to slightly yellow transparent liquid with an HLB value of approximately 9~10. It is readily soluble in oils and organic solvents, and slightly soluble in water. It is typically used by direct addition to the formulation system, mixing well with other components under stirring. Due to its viscosity of about 60 mPa·s (25°C), it has good fluidity, cilitating operation and metering at room temperature. When using, the addition method can be determined based on the oil phase type of the target system and the desired emulsion type (O/W type): For emulsification applications, first dissolve MOA-4 in the oil phase, then mix with the water phase for emulsification; For cleaning and penetration applications, it can be added directly to water with stirring, and compounding with anionic or amphoteric surctants can produce synergistic effects. The product is chemically stable, resistant to acids, alkalis, and hard water, maintaining stable performance in complex systems. It should be noted that the Guoli Chemical product database does not list precise dosage data for each application field. The reference dosages in the "Application Suggestions" below are recommended ranges based on the product characteristics and industry practice experience. The specific dosage should be optimized through gradient tests according to the actual formulation system, process conditions, and performance requirements. Application Suggestions Based on the characteristics and typical application scenarios of MOA-4 (AEO-4), the reference dosages for various fields are as follows (data source: industry common reference values, not direct data from the Guoli Chemical database): Household Liquid Detergents (laundry detergents, dishwashing liquids): 1%~5% of total formulation, used in combination with anionic surctants such as AES and LAS to enhance degreasing ability. Industrial Cleaners (metal cleaning, hard surce cleaning): 2%~8% of total formulation, compounded with alkaline additives as a penetrant and emulsifier to remove mineral oils and greases. Textile Printing and Dyeing Auxiliaries (penetrant/leveling agent): 0.5~2 g/L of working solution concentration, used in pretreatment penetration or dyeing leveling processes. Leather Degreasing Agents: 3%~10% of total formulation, utilizing its excellent emulsifying and penetrating ability to remove natural ts from raw hides. Pesticide Emulsifiers: 5%~15% of total formulation for emulsifiable concentrates or microemulsions, often used in combination with anionic emulsifiers (e.g., calcium dodecylbenzene sulfonate). Coatings and Inks: 0.2%~1% of total formulation (based on pigment weight), to improve pigment wetting, dispersion, and system stability. Emulsion Polymerization: 1%~3% of total monomer, used as primary or auxiliary emulsifier to control latex particle size distribution. Usage Tips: Since MOA-4 has a low cloud point (approximately 25~30°C for a 1% aqueous solution), pay attention to solubility changes when used in high-temperature systems; the product is also low-foaming, making it particularly suitable for applications requiring rapid defoaming or low foam. Technical Parameters ParameterValue AppearanceColorless to slightly yellow transparent liquid Ionic TypeNonionic HLB Value9~10 Active Content≥99% pH (1% Aqueous Solution)5.0~7.0 Cloud Point (1% Aqueous Solution)Approximately 25~30°C Hydroxyl Value150~165 mgKOH/g Density (20°C)Approximately 0.96 g/cm³ Kinematic Viscosity (25°C)Approximately 60 mm²/s Flash Point (Closed Cup)>180°C Moisture Content≤0.5% Free Alcohol≤1% SolubilityReadily soluble in oils and organic solvents, slightly soluble in water (dispersible in water) Foam CharacteristicsLow foaming Chemical StabilityStable, resistant to acids, alkalis, and hard water Precautions During operation, must wear impermeable gloves, chemical safety goggles, and protective clothing. This product causes skin irritation and serious eye irritation (GHS classification: Skin irritation Category 2, Eye irritation Category 2A). Operate in a well-ventilated area, avoid inhaling vapors or mists, and thoroughly wash exposed parts after work. The product is harmful to aquatic life with long-lasting effects (H412). Do not discharge undiluted product into drains, surce water, or soil. Store in a cool, dry, well-ventilated warehouse, keep containers sealed, away from heat sources and strong oxidizers. Before use, it is recommended to conduct small-scale tests to verify the optimal dosage, avoiding waste or system instability due to overuse. Packaging specifications: 50 kg plastic drum, 200 kg plastic drum, IBC tote, can be selected as needed.

Question 9

In which industries and processes is MOA-4 (AEO-4) mainly used?

Accepted Answer

MOA-4 (AEO-4) is widely used in eight major industries including household washing, industrial cleaning, textile printing and dyeing, leather processing, pesticide formulations, coatings and inks, emulsion polymerization, and AES synthesis. It is a multifunctional nonionic surctant. Detailed Description MOA-4 (AEO-4) is a nonionic surctant produced by the addition polymerization of ethylene oxide using C12-14 tty alcohols as initiators. Its molecular structure endows it with excellent emulsifying ability, outstanding wetting and penetrating properties, and good dispersibility. It also has broad chemical compatibility, being able to withstand acidic, alkaline, and hard water environments, and can be combined with anionic, cationic, and amphoteric surctants for synergistic effects. These characteristics make it an indispensable and efficient component in many industrial and household formulations. As a tty alcohol polyoxyethylene ether with medium-low polymerization degree, MOA-4 has a moderate hydrophilic-lipophilic balance (HLB) value, making it particularly suitable as an O/W type emulsifier. In emulsion systems, it can effectively reduce the oil-water intercial tension to form a stable emulsion, suitable for various oil phase systems, serving as a core functional auxiliary agent in many fine chemical formulations. The following are its specific applications in various industries and processes. Applications by Industry and Process IndustrySpecific Process/ProductFunction Household Liquid DetergentsLaundry liquids, dishwashing detergents, liquid laundry soapProvides low-foam degreasing performance and low-temperature washing efficacy, enhancing oil and dirt removal ability Industrial CleanersMetal surce cleaning, hard surce cleaning, bric washingActs as a component with strong penetration and corrosion resistance, effectively removing mineral oils, greases, and solid particles Textile Printing and Dyeing AuxiliariesPretreatment penetrating agents/leveling agents (for cotton, polyester, etc.)Accelerates the penetration of alkali or bleaching agents into the fiber; promotes uniform dye uptake, reduces color spots, and improves dyeing uniformity Leather ProcessingSoaking and degreasing stagesEffectively removes natural ts and dirt from raw hides, keeping the leather surce clean and soft, laying the foundation for subsequent tanning processes Pesticide FormulationsEmulsifiable concentrates (EC), microemulsions (ME), etc.As a nonionic emulsifier, it uniformly disperses oil-soluble pesticides in water, enhancing the wetting and spreading ability of the spray liquid on plant leaves and insect bodies, ensuring dilution stability Coatings and InksWater-based coatings, printing inksImproves pigment wetting and dispersion, enhances system stability and storage stability, assists in regulating film drying speed and flowability Emulsion PolymerizationEmulsion polymerization of monomers such as acrylates and vinyl acetateServes as a primary or auxiliary emulsifier, controlling latex particle size distribution, enhancing emulsion stability and solid content AES SynthesisProduction of alcohol ether sulte (AES)As a key intermediate, further processed via sultion/neutralization to prepare anionic surctant AES, widely used in detergents and personal care products Application Suggestions In formulation design, due to its nonionic nature, MOA-4 can be flexibly combined with anionic, cationic, and amphoteric surctants for synergistic effects. It is recommended to adjust the dosage according to the HLB requirements of the target system and the type of oil phase. In emulsion polymerization, it can be used as the main emulsifier to control latex particle size. In pesticide formulations, it can be used with anionic emulsifiers to improve emulsion stability. The product has high active content, allowing precise and controllable addition, resulting in outstanding usage efficiency. Precautions It is recommended to wear protective gloves and goggles during operation to avoid contact with skin and eyes (GHS classification: Skin irritation Category 2, Serious eye irritation Category 2A). It is harmful to aquatic life with long-lasting effects (H412). Prevent direct discharge of undiluted product into water bodies. The product is not flammable, but should still be kept away from open flames. Store in a cool, dry, well-ventilated warehouse, keeping the container sealed.

Question 10

What are the physicochemical technical parameters of MOA-4 (AEO-4)?

Accepted Answer

MOA-4 (AEO-4) is a nonionic surctant with low to medium polymerization degree, characterized by an HLB value of 9~10, low foaming, resistance to acids and alkalis, and easy solubility in oils and organic solvents, exhibiting excellent comprehensive physicochemical properties. Detailed Description MOA-4 (AEO-4) has the chemical name C12-14 alcohol polyoxyethylene (4) ether, CAS number 68439-50-9. It is a nonionic surctant produced by the addition polymerization of 4 moles of ethylene oxide with C12-14 tty alcohol as the initiator. The product appears as a colorless to slightly yellow transparent liquid with a molecular weight of approximately 362 (calculated as C12 alcohol). It has a high active matter content (≥99%) and a free alcohol content controlled below 1%. In terms of physicochemical properties, the product exhibits strong lipophilicity and moderate hydrophilicity, with an HLB value of 9~10. It is easily soluble in oils and organic solvents, slightly soluble in water (dispersed in water). Its cloud point is relatively low, approximately 25~30°C (1% aqueous solution), which is closely related to the small number of EO adducts. In terms of foam performance, it is a low-foaming surctant, offering distinct advantages in industrial cleaning and textile processes requiring rapid defoaming. From a chemical stability perspective, MOA-4 has good resistance to acids, alkalis, and hard water, maintaining stable performance in complex industrial systems. Acid value ≤0.2, saponification value ≤2, iodine value ≤1 indicate high product purity, few side reactions, and strict control of residual catalysts, making it a high-quality industrial-grade nonionic surctant. Technical Parameters Parameter Item Value Remarks/Conditions Product Name MOA-4 (AEO-4) Laureth-4 CAS Number 68439-50-9 — Ionic Type Nonionic — Molecular Formula C12-14H25-29O(C2H4O)nH, n≈4 — Molecular Weight Approx. 362 Calculated as C12 alcohol Appearance Colorless to slightly yellow liquid Visual Active Matter Content ≥99% — Solid Content ≥99% — Free Alcohol ≤1% — Water Content ≤0.5% — HLB Value 9~10 — pH Value 5.0~7.0 1% and 5% aqueous solution Cloud Point Approx. 25~30°C 1% aqueous solution Density Approx. 0.96 g/cm³ 20°C Melting Point Approx. 5°C — Refractive Index 1.4550 20°C Kinematic Viscosity Approx. 60 mm²/s 25°C Low Shear Viscosity Approx. 60 mPa·s 25°C Flash Point >180°C Closed cup method Surce Tension Approx. 28 mN/m 0.1% aqueous solution, 25°C Critical Micelle Concentration (CMC) Approx. 6.5×10⁻⁵ mol/L 25°C Hydroxyl Value 150~165 mgKOH/g — Acid Value ≤0.2 mgKOH/g — Saponification Value ≤2 mgKOH/g — Iodine Value ≤1 gI₂/100g

MOA-4 (AEO-4)

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Application Guidelines

Packaging and Storage

MOA/AEO Ethoxylate Applications

Product Properties

MOA-4/AEO-4 Safety

GHS

Handling

Storage

First Aid

Related Products

Property	Value
CAS No.	68439-50-9
Molecular Formula	C12-14H25-29O(C2H4O)nH, n≈4
Appearance	Colorless to slightly yellow liquid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 362 (based on C12 alcohol)
Cloud Point	~25~30°C (1%aq. soln.)
Active Content	≥99
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	≤1
Solubility	Readily soluble in oils and organic solvents; slightly soluble in water (dispersible)
Surface Tension	~28 mN/m (0.1%aq. soln., 25°C)
CMC	~6.5×10⁻⁵ mol/L (25℃)
Acid Value	≤0.2
Saponification Value	≤2
Hydroxyl Value	150~165
Moisture	≤0.5
Density	~0.96 g/cm³ (20°C)
Kinematic Viscosity	~60 mm²/s (25°C)
Refractive Index	1.4550 (20°C)
Flash Point	>180°C (closed cup)
Hygroscopicity	Low
Chemical Stability	Stable; resistant to acids, alkalis and hard water
Penetration	Moderate
Foam Property	Low foam
Alkali Resistance	Alkali resistant
Unsaturation	<0.1 mol/kg
Viscosity	~60 mPa·s (25°C)
Melting Point	~5°C
Low Shear Viscosity	~60 mPa·s (25℃)
Solid Content	≥99
Free Alcohol	≤1%
Heavy Metal	≤10 mg/kg (as Pb)
Arsenic	≤2 mg/kg