Question 1

Is octadecyl polyoxyethylene ether AC-1820 harmful to the human body? Does it have an impact on the environment?

Accepted Answer

Octadecyl polyoxyethylene ether AC-1820 is irritating to the skin and eyes, and is harmful to aquatic organisms. Improper handling may harm human health and the environment. Impact on Human Health According to the classification under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), octadecyl polyoxyethylene ether AC-1820 is clearly classified as a skin irritant (Category 2, H315) and a serious eye irritant (Category 2, H319). This means that if the product comes into direct contact with the skin, it may cause irritation reactions such as redness and itching; if splashed into the eyes, it may cause severe eye damage and discomfort. The product packaging should be labeled with the GHS07 (exclamation mark) pictogram and use the signal word "Warning." It is particularly noteworthy that although this product is typically considered a non-ionic surctant, in an acidic environment, its molecules will be protonated, exhibiting cationic properties. This characteristic may enhance its adsorption and irritation to human skin and mucous membranes, so extra caution is required when used in acidic systems. Impact on the Environment Octadecyl polyoxyethylene ether AC-1820 is classified as acutely toxic to the aquatic environment (Category 3, H402), meaning it is harmful to aquatic organisms. The long-chain alkyl group (octadecyl chain) in its chemical molecular structure gives it a certain bioaccumulation potential. If directly discharged into water bodies, it may have long-term harmful effects on aquatic organisms such as fish and plankton. Therefore, this product and its waste must not be directly discharged into rivers, lakes, sewers, or soil without treatment. During production, use, and disposal, local environmental regulations must be followed, and waste must be treated as chemical waste by qualified professional organizations. Safe Handling and Protection Recommendations To ensure personal and environmental safety, the following protective measures must be strictly observed when handling octadecyl polyoxyethylene ether AC-1820: Engineering Controls: The work area must be well-ventilated, and local exhaust ventilation should be used if necessary to avoid inhalation of vapors or aerosols. Personal Protective Equipment: Wear certified chemical protective gloves (e.g., nitrile rubber), safety goggles or ce shield, and appropriate protective clothing during operation to ensure skin and eyes do not come into direct contact with the product. Operation Discipline: No eating, drinking, or smoking is allowed during operation. After operation, immediately remove contaminated clothing and thoroughly wash hands and any exposed skin. Spill and Waste Disposal: In case of spillage, cover with inert absorbent materials (e.g., dry sand, vermiculite) and collect. Do not flush into surce water or drainage systems. Waste products should be incinerated in licensed incinerators per regulations or handed over to qualified waste disposal companies. Emergency Treatment Points Skin Contact: Immediately remove contaminated clothing and rinse with plenty of running water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye Contact: Gently rinse inside the eyelids with plenty of water or saline solution for at least 15 minutes, lifting the upper and lower eyelids periodically. Seek immediate professional medical help. Ingestion: Rinse mouth carefully, do not induce vomiting, and immediately call a poison control center or seek medical attention. For more detailed toxicological and ecological data, please refer to the Safety Data Sheet (SDS) provided by Haian Guoli Chemical Co., Ltd.

Question 2

What should I do if problems occur during the use of Octadecylamine Polyoxyethylene Ether AC-1820? How to get technical support?

Accepted Answer

If you encounter problems using AC-1820, please first quickly troubleshoot by type, and contact Haian Guoli Chemical Co., Ltd. for professional technical support. Common Problems and Troubleshooting Ideas Problems that may occur during the use of Octadecylamine Polyoxyethylene Ether AC-1820 are usually related to its pH-dependent ionic properties. For example, under non-acidic conditions, it exhibits non-ionic characteristics. If mistakenly used in scenarios requiring strong cationic adsorption (such as neutral dye baths), the leveling or antistatic effect may be poor. It is recommended to first check the pH value of the working system: if its cationic performance is needed, the system pH should be adjusted to acidic. If stratification, precipitation, or decreased performance occurs, it may be due to improper storage (moisture absorption, high temperature) or mixing with incompatible substances (such as strong oxidizers, certain strong acids). According to the database, this product is slightly hygroscopic, and the packaging should be kept sealed. If product degradation is suspected, check whether the appearance is light yellow to yellow. Under normal conditions, the pH of a 1% aqueous solution should be in the range of 6.0~8.0. Emergency Handling of Safety or Health Incidents If the issue is an emergency involving personal contact, take immediate action according to the guidance in the product Safety Data Sheet: Skin contact: Immediately remove contaminated clothing and rinse with plenty of running water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye contact: Immediately rinse with plenty of water or saline while lifting the eyelids for at least 15 minutes. Seek medical attention immediately. Spill handling: Wear protective equipment such as gloves and goggles. Use inert absorbent materials (e.g., dry sand) to contain and collect the spill. Do not flush into drains. How to Get Technical Support from Guoli Chemical For non-urgent technical issues such as product application formula debugging, technical parameter interpretation, and process optimization, you can directly contact the manucturer Haian Guoli Chemical Co., Ltd. for official support. It is recommended that you prepare the following information before contacting so that the engineer can quickly locate the problem: Product batch number (located on the packaging barrel label) Usage condition details (system pH, temperature, compatible chemicals, dosage ratio) Specific phenomena encountered (e.g., turbidity, precipitation, excessive foam, substandard effect, etc.) Date of purchase and storage environment to rule out possible deterioration. You can visit the official website of Guoli Chemical, call the sales or technical hotline published by the company, or send an email through the "Contact Us" page. Typically, the technical team can provide in-depth analysis of the impact of key parameters such as HLB value (approx. 15.4), cloud point (>100°C), and critical micelle concentration (approx. 60 mg/L) on the formulation. If the existing parameter information in the database does not solve your problem, the official technical application laboratory can provide more targeted testing and suggestions. Precautions Before obtaining official confirmation, do not arbitrarily apply this batch of products to critical production orders to avoid greater losses. Waste disposal must comply with local regulations, be handled by qualified waste processors, and must not be discharged into the environment.

Question 3

How to purchase Octadecylamine Polyoxyethylene Ether AC-1820? What is the minimum order quantity?

Accepted Answer

To purchase Octadecylamine Polyoxyethylene Ether AC-1820, please directly contact the sales team of Guoli Chemical. The price and minimum order quantity are subject to real-time inventory and order requirements. Detailed Description Octadecylamine Polyoxyethylene Ether AC-1820 (CAS number: 26635-75-6) is a nonionic surctant regularly produced by Guoli Chemical, widely supplied to industries such as textile printing and dyeing, agrochemicals, and industrial cleaning. The current price information for this product is shown as negotiable, and the actual transaction price will be influenced by ctors such as raw material market conditions, order quantity, packaging specifications, and logistics methods. It is recommended to obtain an accurate quotation through the following channels: Contact Sales Department: Call the sales hotline published on the Guoli Chemical official website or send an inquiry email, specifying the product name (AC-1820), specification requirements, and estimated purchase quantity. The sales staff will provide a stamped quotation based on your needs and assist you with contract signing, payment, and shipment arrangements. Minimum Order Quantity Explanation: AC-1820 is typically shipped in the smallest packaging unit of a 50kg plastic drum. Generally, the minimum order quantity is 1 drum (50kg), but the specific policy may vary depending on inventory and region. Bulk purchases by large customers (e.g., 200kg drums or IBC totes) usually qualify for more vorable pricing. The actual minimum order quantity is subject to final confirmation by the sales team. Technical Parameters Parameter ItemTechnical Index Product NameOctadecylamine Polyoxyethylene Ether AC-1820 SynonymPEG-20 Stearylamine, Leveling Agent AC-1820, Antistatic Agent AC-1820 CAS Number26635-75-6 Appearance (25°C)Light yellow to yellow liquid/paste Ionic TypeNonionic (exhibits cationic characteristics under acidic conditions) Active Content≥99% pH Value (1% Aqueous Solution)6.0～8.0 HLB ValueApproximately 15.4 Amine Content≥95% Amine Value (mg KOH/g)50～60 Moisture Content≤0.5% Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote Application Recommendations AC-1820 is a core functional additive of Guoli Chemical. Due to its ability to be protonated and exhibit cationic properties under acidic conditions, its applications are highly flexible: Textile Leveling: Used in acid dye baths for wool and nylon, recommended dosage is 1%～3% based on dye weight, significantly reducing color spots and improving leveling effect. Pesticide Emulsification: As a compounding emulsifier in emulsifiable concentrates or microemulsions, reference dosage is 3%～10%, improving the spreadability of the spray liquid on leaf surces and resistance to rain washing. Industrial Cleaning and Corrosion Inhibition: Adding 1%～5% in acidic cleaning agents provides dual effects of good oil emulsification and metal corrosion inhibition. Antistatic Modification: For surce treatment of synthetic fibers or plastic products, it is recommended to dilute to a working concentration of 0.5%～2%. Precautions Safety Protection: This product is classified as causing skin irritation (H315) and serious eye irritation (H319). Operators must wear nitrile rubber gloves, goggles, and protective clothing, and ensure good ventilation. Storage Conditions: Store in a cool, dry, and well-ventilated place, avoiding direct sunlight and high temperatures. Melting point is approximately 35°C. Solidification may occur at low temperatures, which is normal; heating to melt does not affect performance. Environmental Note: This product is harmful to aquatic life (H402). Do not discharge untreated materials directly into water systems or soil. Price Explanation: The above prices are for reference only. The actual price is subject to the quotation provided by the Guoli Chemical sales team on the day. For the latest quotation method, please visit the official website or contact the sales department.

Question 4

Does octadecylamine polyoxyethylene ether AC-1820 meet environmental requirements? Can a test report be provided?

Accepted Answer

Octadecylamine polyoxyethylene ether AC-1820 is classified as a substance hazardous to aquatic life (GHS Acute Aquatic Toxicity Category 3), which imposes certain restrictions in terms of conventional environmental compliance. It is not a "green" or environmentally friendly product. Detailed Explanation According to the Safety Data Sheet (SDS) supplied by Guoli Chemical, octadecylamine polyoxyethylene ether AC-1820 is classified as Hazardous to the aquatic environment — Acute toxicity Category 3 (H402: Harmful to aquatic life), and may cause long-lasting harmful effects to aquatic organisms. This means that the product is not a completely environmentally friendly chemical, and strict control is required regarding wastewater discharge and protection of water bodies. From an environmental compliance perspective, under normal industrial use conditions, AC-1820 must comply with the mandatory requirement "Do not discharge the product directly into the environment, drains or water bodies." When using this product, enterprises must have proper wastewater treatment cilities in place to ensure that discharges are properly treated before being released into the environment. If you need to assess whether this product complies with specific regional or industrial environmental regulations such as REACH or RoHS, there is currently no relevant certification information in the database. It is recommended to directly contact the technical department of Guoli Chemical for a targeted compliance statement. It is worth mentioning that AC-1820 itself does not contain phosphorus, APEO (alkylphenol polyoxyethylene ether) or other strictly banned components, which gives it a positive significance in replacing traditional high-pollution surctants. However, its inherent aquatic toxicity risk cannot be ignored, and users should consider it comprehensively within the overall environmental assessment framework. Environmental Parameters Environmental IndicatorClassification/Description Hazardous to aquatic environment — Acute toxicityCategory 3 (H402: Harmful to aquatic life) GHS PictogramGHS07 (Exclamation mark) Signal WordWarning Discharge control requirementDo not discharge directly into the environment, drains or water bodies Disposal methodAs chemical waste, dispose of through a licensed professional waste disposal company via incineration or other compliant methods APEO contentNot containing (not an alkylphenol polyoxyethylene ether type product) Regarding Test Reports Currently, the Guoli Chemical product database does not have an independent environmental test report for AC-1820 (such as biodegradability test report, aquatic toxicity test data, VOC test report, etc.) available for direct download. The standard Safety Data Sheet (SDS) is a basic compliance document that is confirmed to be available, covering hazard overview, ecological information, and emergency response content. If you need to obtain the following types of reports, it is recommended to submit a request through Guoli Chemical's official channels (sales or technical customer service): ROHS/REACH compliance statement or test report Biodegradation rate (OECD 301 series) test report Detailed aquatic ecotoxicity (fish/algae/daphnia) data Product analysis report (COA) Environmental test report issued by third-party organizations such as SGS/TÜV Precautions Before obtaining an official test report, do not apply AC-1820 in scenarios that explicitly require "biodegradable" or "environmentally friendly" certification (such as certain green textile standards, ecological pesticide formulations, etc.). In industrial production, wastewater collection and treatment steps must be established, and untreated wastewater containing AC-1820 must not be directly discharged to avoid violating relevant regulations such as the "Water Pollution Prevention and Control Law."

Question 5

What are the advantages of Octadecylamine Polyoxyethylene Ether AC-1820 compared to other similar products?

Accepted Answer

Okay, based on the technical data from Guoli Chemical, here is an analysis of the core advantages of Octadecylamine Polyoxyethylene Ether AC-1820.According to Guoli Chemical's technical data, the core advantage of AC-1820 compared to similar products lies in its unique "environmentally responsive" ionic properties - it acts as a nonionic surctant under neutral and alkaline conditions, and converts to a cationic surctant under acidic conditions. This characteristic gives it r greater application flexibility and performance than conventional single-ionic-type products.Detailed explanation as follows:1. Excellent Application FlexibilityConventional nonionic surctants (such as tty alcohol polyoxyethylene ethers) cannot form strong bonds with negatively charged substrates (such as fibers, metals, minerals) through charge interaction; while conventional cationic surctants have poor compatibility in non-acidic systems or systems containing anionic auxiliaries. AC-1820 perfectly resolves this contradiction, enabling it to function stably in more complex formulation systems.2. More Efficient PerformanceDue to protonation under acidic conditions, AC-1820 can exhibit an "active adsorption" capability in specific applications, which ordinary nonionic surctants cannot achieve. For example, in acid dye leveling agents, it not only delays dye uptake but also actively binds to fibers, achieving "migration leveling" that fundamentally eliminates color spots and patches, resulting in superior leveling effects.3. Broad Process ApplicabilityIts dual characteristics allow it to function in multi-step processes in a one-bath method, or to be used in systems with a wide pH range, simplifying formulations and processes - something that single ionic type products can hardly achieve.Specific Data Comparison Advantages| Performance Feature | Guoli Chemical AC-1820 | Conventional Nonionic (e.g., tty alcohol ether) | Conventional Cationic (e.g., quaternary ammonium salt) || :--- | :--- | :--- | :--- || Ionic Property | Nonionic/Cationic (pH-dependent) | Nonionic | Cationic (permanent) || HLB Value | 15.4 | 10-15 (variable) | Not applicable, or low || Water Solubility/Cloud Point | Easily soluble / >100°C (1% aqueous solution) | Mostly soluble, cloud points vary | Easily soluble || Affinity in Acid Bath | Strong (positively charged after protonation) | Weak | Very strong, may cause coagulation || Compatibility with Anionic Auxiliaries | Good to moderate | Good | Poor, prone to precipitation || Antistatic Property | Durable, wash-resistant | Poor | Good, but may affect color || In Acidic Cleaners | Combines emulsification and corrosion inhibition | Only emulsification, cleaning | Strong adhesion, cleaning performance may decrease |Application Recommendations* As an acid leveling agent for wool/nylon: It is recommended to adjust the dye bath pH to 4-5, then add 0.5% - 2% (on weight of bric) of AC-1820 at room temperature, run for 10 minutes, then add the dye. Its migration leveling ability is unmatched by most leveling agents currently on the market.* In acidic industrial cleaners: The recommended dosage is 2% - 5% of the total formulation weight. It can significantly inhibit the corrosion of hydrochloric acid, phosphoric acid, etc., on carbon steel and copper, which is a key advantage for choosing it.PrecautionsIts cationic property is only "activated" under acidic conditions. If you need cationic effects in alkaline processes, you should choose permanent cationic products. Please follow safety labels during operation and avoid direct contact with skin and eyes.

Question 6

How to store Octadecylamine Polyoxyethylene Ether AC-1820? What is the shelf life?

Accepted Answer

Octadecylamine Polyoxyethylene Ether AC-1820 should be stored sealed in a cool, dry, and well-ventilated environment. Under recommended storage conditions, the shelf life is typically 1-2 years from the date of manucture. Detailed Description To ensure the stable quality and performance of Octadecylamine Polyoxyethylene Ether AC-1820, its storage requirements must be strictly followed. This product is slightly hygroscopic and has a melting point of approximately 35°C, so special attention must be paid to controlling the temperature and humidity of the storage environment. The product should always be stored in a sealed original container to avoid contact with moisture and impurities in the air. The storage area should be well-ventilated, away from heat sources and ignition sources, and protected from direct sunlight to prevent product discoloration or performance degradation. In terms of compatibility, this product should be stored separately from incompatible substances such as strong oxidizing agents and strong acids to avoid harmful chemical reactions. It is recommended to implement closed management of the storage area, accessible only to trained and authorized personnel. At the same time, to prevent container deformation or damage due to overstacking, which could cause leakage risks, the stacking layers must comply with the corresponding safety regulations. Technical Parameters Storage and Physicochemical Related Parameters of Octadecylamine Polyoxyethylene Ether AC-1820 Parameter ItemValue or Description Appearance (25°C)Light yellow to yellow waxy or paste-like solid Melting PointApprox. 35°C Flash Point>200°C Density (25°C)Approx. 1.04 g/cm³ HygroscopicitySlightly hygroscopic Chemical StabilityStable at room temperature, avoid contact with strong oxidizing agents Storage TemperatureRecommended cool environment below 35°C, avoid high temperature Shelf LifeNo data available for this parameter (General recommendation: 1-2 years from production date) Note: The above technical parameters are sourced from the Guoli Chemical product database. The shelf life is a general recommendation for chemical products; please refer to the product packaging label for specific information. Application Recommendations After each use, the product container opening must be immediately resealed tightly to prevent moisture absorption and oxidation. If the product solidifies or stratifies due to ambient temperature being lower than its melting point, this is a normal physical phenomenon and does not affect its intrinsic quality. Before opening and use, the package can be placed in a warm room above 35°C or a water bath (Do not use open flames for direct heating) to slowly melt and then homogenize before normal use. Precautions Personal Protection: According to the safety data sheet, this product causes skin and eye irritation (H315, H319). When handling and transferring the product, be sure to wear qualified chemical-resistant gloves, goggles, and protective clothing. Emergency Response: In case of leakage, use inert absorbent materials such as dry sand or vermiculite to contain and collect. Disposal of waste must comply with local environmental regulations; do not discharge directly into water bodies or the environment. Quality Confirmation: For inventory products near or beyond the recommended shelf life, it is recommended to conduct laboratory trials before use to evaluate whether key performance indicators (such as pH value, hydroxyl value, amine value) still meet application requirements.

Question 7

What safety precautions should be taken when using octadecylamine polyoxyethylene ether AC-1820?

Accepted Answer

When using AC-1820, the core safety points are to protect the skin, eyes, and respiratory tract, and to prevent harm to the aquatic environment. This product has low to moderate toxicity, but has definite skin and eye irritation. Detailed Explanation Octadecylamine polyoxyethylene ether AC-1820 is classified under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as skin irritation (Category 2, H315) and serious eye irritation (Category 2, H319), while also having acute toxicity to aquatic life (Category 3, H402). Its signal word is Warning, and the hazard pictogram is GHS07 (exclamation mark). This means that any negligence during operation may lead to discomfort such as redness, swelling, and pain at the contact site, so standardized use is key. From the physicochemical properties of the product itself, AC-1820 is a non-ionic surctant derived from octadecyl tty amine as the starting material, modified by polymerization with ethylene oxide. Under acidic conditions, it can be protonated to exhibit cationic properties. Its good emulsifying and dispersing capabilities make it widely used in formulations, but it also means that if it leaks into water bodies, it may cause long-term harmful effects on the aquatic ecosystem. Therefore, it is strictly prohibited to discharge untreated material directly into water bodies or sewers. In terms of daily operation management, enterprises should establish a comprehensive chemical management system. Operators must receive special training before starting work and be miliar with the Safety Data Sheet (SDS) of this product. The workplace should be equipped with emergency eyewash stations and safety showers, and ensure good ventilation, away from fire sources and strong oxidizers. Any unauthorized personnel must not enter the storage and usage areas. Summary of Safety Protection Points Protection ItemSpecific Requirements Hand ProtectionWear certified chemical safety protective gloves (nitrile rubber recommended), check glove integrity before each use Eye/ce ProtectionWear chemical safety goggles or ce shield to prevent splashes Body ProtectionWear appropriate chemical protective clothing to avoid exposed skin Respiratory ProtectionGenerally, no special respiratory protection is required, but ensure good ventilation in the work area; in environments with inadequate ventilation or where aerosols may be generated, use local exhaust ventilation or wear a particulate respirator Operational BehaviorNo eating, drinking, or smoking during operation; immediately remove contaminated clothing after operation, thoroughly wash hands and exposed skin Storage Requirements Store in a cool, dry, well-ventilated dedicated warehouse, avoiding direct sunlight and high temperatures. Containers must be kept tightly closed to prevent moisture absorption or contamination. Store separately from incompatible substances such as strong oxidizers and strong acids, avoiding mixed storage. Storage areas should be locked and only accessible to authorized personnel. Stacking layers must comply with safety requirements to prevent container deformation or damage. Emergency Measures Accident TypeHandling Steps Skin ContactImmediately remove all contaminated clothing and thoroughly wash the affected area with plenty of running water and soap for at least 15 minutes. If skin irritation persists or worsens, seek medical attention immediately. Eye ContactImmediately rinse gently under eyelids with plenty of water or saline for at least 15 minutes. During rinsing, lift upper and lower eyelids occasionally. If wearing contact lenses and they can be easily removed, remove them and continue rinsing. Seek immediate professional medical treatment. InhalationQuickly move the person to fresh air and maintain an open airway. If breathing discomfort occurs, administer oxygen. If breathing stops, immediately perform artificial respiration by trained personnel. Seek medical attention immediately. IngestionRinse mouth cautiously, do NOT induce vomiting to avoid aspiration into the lungs. Immediately call a poison control center or doctor, and show the product container or label. Spill HandlingPersonnel must wear appropriate personal protective equipment. Ensure safety first, then immediately contain and control the source of the spill. Cover and collect the spill with chemically inert absorbent materials (such as dry sand, vermiculite, or universal absorbent), and place in a sealed, labeled waste container. Do not flush spills into surce water, drainage systems, or soil. Disposal Considerations Dispose of waste as chemical waste in accordance with local, regional, and national environmental regulations. Recommended disposal methods include incineration in a licensed incinerator or handing over to a qualified professional waste disposal company. Do not discharge untreated material directly into the environment, sewers, or water bodies.

Question 8

How to use Octadecylamine Polyoxyethylene Ether AC-1820? What is the recommended dosage?

Accepted Answer

The recommended dosage of Octadecylamine Polyoxyethylene Ether AC-1820 varies by application area, typically ranging from 0.5% to 8% as a functional additive in formulations. The specific usage method and dosage should be optimized based on the target process, formulation system, and performance requirements. Detailed Description Octadecylamine Polyoxyethylene Ether AC-1820 (CAS: 26635-75-6) is a nonionic surctant with pH-dependent ion conversion characteristics. Under acidic conditions, it can be protonated into a cationic type, exhibiting excellent emulsifying, dispersing, wetting, and leveling capabilities. This product appears as a light yellow to yellow paste or waxy solid at room temperature (melting point approx. 35°C). Before use, it is usually necessary to heat it to a flowable state or pre-disperse it with warm water, then add it into the formulation system and stir evenly. In different applications, the addition method and process point of AC-1820 vary. In the textile dyeing and printing field, it is typically added directly to the dye bath. In pesticide formulations, it needs to be compounded with other emulsifiers and participate in the oil phase pre-mixing. In industrial cleaning and metalworking fluids, it can be blended with other surctants and auxiliaries. When used as an antistatic agent, it can be applied to fiber or plastic surces via padding, spraying, or internal addition. The specific dissolution and feeding method should be determined through small-scale trials based on the actual formulation process. Special attention is required: Under acidic conditions, AC-1820 exhibits cationic properties and should avoid direct mixing with anionic surctants or auxiliaries to prevent precipitation or ilure due to ionic interaction. If anionic components are needed in the formulation, it is recommended to compound under neutral or alkaline conditions, or use a stepwise addition process to avoid compatibility issues. Technical Parameters ParameterValueParameterValue AppearanceLight yellow to yellow (paste/waxy solid)Ionic typeNonionic (cationic under acidic conditions) Active content≥99%HLB value15.4 Tertiary amine content≥95%Amine value50~60 mgKOH/g Hydroxyl valueApprox. 98 mgKOH/gCloud point (1% aqueous solution)>100°C pH of 1% aqueous solution6.0~8.0Moisture content≤0.5% Melting pointApprox. 35°CDensity (25°C)Approx. 1.04 g/cm³ Surce tension (1%, 25°C)Approx. 35 mN/mCritical micelle concentration (CMC)Approx. 60 mg/L (25°C) Foam characteristicsLow foamPenetration power (canvas sinking method)>200 seconds SolubilityEasily soluble in water and organic solventsPackaging specifications50kg/200kg plastic drum, IBC tote Above data source: Guoli Chemical Product Database Application Recommendations The following are recommended dosage ranges for each field based on industry practice experience (final dosage should be determined through small-scale testing): Application FieldRecommended DosageUsage Instructions Acid dye leveling agent (wool/nylon)0.5%~1.5% (owf)Add before dye bath temperature rise, circulate evenly with dye; provides optimal leveling effect under acidic conditions Pesticide emulsifier (EC/EW)2%~8% (of total formulation)Use in combination with other emulsifiers, participate in oil phase pre-mixing before emulsification; significantly improves emulsion stability and spray liquid wetting/spreading Industrial cleaner1%~5% (of total working solution)Compound with builders, corrosion inhibitors, etc.; provides both emulsification and metal corrosion inhibition in acidic cleaning systems Metalworking fluids (cutting fluids/grinding fluids)0.5%~3% (of total concentrate)Add as corrosion inhibition and lubrication component; forms protective film on metal surce, prolongs tool and workpiece life Synthetic fiber/plastic antistatic agent0.5%~2% (on weight of fiber or resin)Padding method: prepare 0.5%~2% aqueous solution, pad and dry; Internal addition method: add before resin pelletizing or spinning and disperse evenly Mineral flotation agent50~200 g/t (ore)Add as selective collector or auxiliary frother in flotation process; dosage optimized based on ore type and particle size distribution Asphalt emulsifier1%~3% (of total emulsified asphalt)Dissolve in acidic aqueous phase and emulsify with hot asphalt using a colloid mill to produce stable cationic emulsified asphalt The above recommended dosages are industry general reference ranges; the specific dosage should be determined based on actual formulation and process conditions through small-scale and pilot-scale verification. Precautions Pretreatment: The product has a melting point of approx. 35°C and may be solid at low temperatures. It is recommended to preheat and soften in a 40~50°C water bath before use, or directly take the paste material. Do not use open flames for direct heating. Compatibility: Exhibits cationic properties in acidic systems; avoid direct mixing with anionic surctants (e.g., LAS, SDS, AES) to prevent precipitation. If combined use is required, first conduct compatibility tests. Personal protection: Wear nitrile rubber gloves, safety goggles, and protective clothing during operation (product is classified as GHS skin irritation category 2, eye irritation category 2). Ensure good ventilation in the working environment. Storage: Keep sealed in a cool, dry place, away from strong oxidizers and strong acids, and prevent moisture absorption. Use promptly after opening. Environmental protection: The product is harmful to aquatic life (H402). Do not discharge untreated wastewater containing the product directly into water bodies. Dispose of waste in accordance with local regulations by qualified professional agencies.

Question 9

What are the main industries and processes in which Stearyl Alcohol Polyoxyethylene Ether AC-1820 is used?

Accepted Answer

Stearyl Alcohol Polyoxyethylene Ether AC-1820 is a versatile nonionic surctant, which, due to its unique pH-dependent ionic conversion characteristics, is widely used in various industries including textile printing and dyeing, agricultural chemicals, industrial cleaning, metal processing, synthetic materials, mineral flotation, and road construction. Detailed Description Stearyl Alcohol Polyoxyethylene Ether AC-1820 (CAS No.: 26635-75-6) is produced by the polymerization modification of octadecyl tty amine with ethylene oxide. Its core advantage lies in its dual ionic property: it behaves as a stable nonionic surctant under neutral and alkaline conditions, while in acidic media, the tertiary amine group protonates and converts it into a cationic surctant. This characteristic provides high application flexibility in complex formulation systems, enabling it to meet the dual requirements of emulsion stability and substrate adsorption. In the textile printing and dyeing industry, AC-1820 is a key component of leveling agents for acid dyes, effectively controlling the dye uptake rate and preventing color spots and uneven dyeing. It is especially suitable for dyeing processes of wool, nylon, and their blended brics. In the agricultural chemicals field, it serves as an efficient emulsifier in pesticide emulsifiable concentrates, aqueous emulsions, and microemulsion formulations, maintaining good emulsion stability even in hard water and under wide temperature conditions. Additionally, AC-1820 combines emulsification and corrosion inhibition functions in industrial cleaning, forming a protective film on metal surces to inhibit acid corrosion; in the field of synthetic materials, it can be used as an antistatic agent, utilizing its cationic adsorption property to eliminate static accumulation; it is also applied in mineral flotation and asphalt emulsification processes. Overview of Core Application Industries and Processes Application IndustrySpecific Process/UseFunction Description Textile Printing and DyeingLeveling agent for acid dyes, leveling agent for wool/nylon bricsSlows down dye uptake rate, eliminates color spots and uneven dyeing, improves dyeing uniformity and color stness Agricultural ChemicalsPesticide emulsifier (emulsifiable concentrates, aqueous emulsions, microemulsions)Provides excellent emulsion stability, enhances wetting, spreading, and adhesion of the spray solution on plant leaves Industrial CleaningIndustrial cleaning agents, metal parts cleaningStrong emulsification, dispersion, and penetration performance, effectively removes oil, wax, and carbon deposits Metal ProcessingCutting fluids, grinding fluids, corrosion inhibitorsForms a protective film to inhibit corrosion of steel, aluminum, and other metals, with lubricating and anti-rust functions Synthetic MaterialsAntistatic agent for synthetic fibers and plasticsReduces surce resistivity of materials, quickly dissipates static charges, provides durable antistatic performance Mineral ProcessingCollector for mineral flotation, froth auxiliary agentImproves bubble attachment and mineralization effect, enhances recovery rate and grade of target minerals Road ConstructionAsphalt emulsifierPromotes stable dispersion of asphalt in water, producing cationic or nonionic emulsified asphalt Application Recommendations Suggestions for different application scenarios: Textile Leveling: Use in acidic dye baths, leveraging its cationic characteristics after protonation to promote uniform bonding between dyes and fibers. Dosage should be adjusted according to the dyeing process. Pesticide Formulation: As a compounding emulsifier component, suitable for various formulations such as emulsifiable concentrates and aqueous emulsions, maintaining stable emulsification even in hard water. Industrial Cleaning: Suitable for acidic and neutral cleaning systems, with good ability to strip oil and solid particles from metal surces. Metalworking Fluids: Can be added as a corrosion inhibitor and lubricant component, forming a protective film to extend the life of workpieces and tools. Precautions This product is classified as causing skin irritation (H315) and serious eye irritation (H319). Wear chemical-resistant gloves, goggles, and protective clothing during operation. It is harmful to aquatic life (H402). Do not discharge untreated material directly into the water environment. Use in a well-ventilated area and store in a cool, dry place. Keep the container tightly closed and avoid storage with strong oxidizing agents and strong acids. Refer to the Safety Data Sheet (SDS) for specific toxicological and ecological data.

Question 10

What are the physicochemical and technical parameters of Octadecylamine Polyoxyethylene Ether AC-1820?

Accepted Answer

Octadecylamine Polyoxyethylene Ether AC-1820 is a surctant with non-ionic/cationic dual characteristics. Its various physicochemical parameters are balanced and stable, with an HLB value as high as 15.4, demonstrating excellent hydrophilicity. Detailed Description Octadecylamine Polyoxyethylene Ether AC-1820 (CAS No.: 26635-75-6) is a non-ionic surctant prepared by polymerization of octadecyl tty amine with 20 ethylene oxide molecules. The product appears as light yellow to yellow solid at room temperature (melting point approx. 35°C), readily soluble in water and various organic solvents. Its unique molecular structure imparts pH-dependent ionic conversion characteristics—it behaves as a non-ionic surctant under neutral and alkaline conditions, while protonating to exhibit cationic properties in acidic media. This duality offers wide application flexibility in textile dyeing and printing, pesticide emulsification, industrial cleaning, and other fields. Key indicators of this product include: active content ≥99%, HLB value 15.4, cloud point of 1% aqueous solution >100°C, indicating strong hydrophilicity and high-temperature stability. Surce tension is approximately 35 mN/m (1% solution, 25°C), and critical micelle concentration is about 60 mg/L, demonstrating excellent surce activity and wetting/spreading ability. The product exhibits strong tolerance to acidic and alkaline environments, is insensitive to hard water ions, and has low foam, particularly suitable for industrial formulation systems that require stable performance under a wide range of operating conditions. All technical parameters are derived from actual test data in the product database of Guoli Chemical, serving as technical references for formulation design and quality control. Technical Parameters Basic Information Product NameOctadecylamine Polyoxyethylene Ether AC-1820 SynonymsOctadecylamine Polyoxyethylene Ether (20), PEG-20 Stearylamine, Ethoxylated Stearylamine, Antistatic Agent AC-1820, Leveling Agent AC-1820 CAS No.26635-75-6 Molecular FormulaC58H119NO20 Molecular WeightApprox. 1150 Ionic TypeNon-ionic (exhibits cationic properties under acidic conditions) AppearanceLight yellow to yellow SolubilityReadily soluble in water and organic solvents Physicochemical Properties HLB Value15.4 Cloud Point (1% Aqueous Solution)>100°C Melting PointApprox. 35°C Density (25°C)Approx. 1.04 g/cm³ Kinematic Viscosity (40°C)Approx. 200 mm²/s Low Shear Viscosity (25°C)Approx. 300 mPa·s Refractive Index (20°C)Approx. 1.460~1.470 Flash Point>200°C HygroscopicitySlightly hygroscopic Surce Tension (1% Solution, 25°C)Approx. 35 mN/m Critical Micelle Concentration (25°C)Approx. 60 mg/L Foam CharacteristicsLow foaming Penetrating Power (Canvas Sinking Method)>200 seconds Chemical StabilityStable at room temperature, avoid strong oxidizing agents Alkali ResistanceStable under alkaline conditions Quality Specifications Active Content≥99% pH Value (1% Aqueous Solution)6.0~8.0 pH Value (5% Aqueous Solution)6.0~8.0 Moisture Content≤0.5% Acid Value≤1 mgKOH/g Iodine Value≤2 gI₂/100g Hydroxyl ValueApprox. 98 mgKOH/g Amine Value50~60 mgKOH/g Tertiary Amine Content≥95% Unsaturation≤0.1 mol/kg Free Alcohol≤1% Heavy Metals (as Pb)≤10 mg/kg Arsenic (As)≤2 mg/kg Packaging Specifications Packaging Options50kg plastic drum, 200kg plastic drum, IBC tote Application Recommendations Based on the physicochemical properties of this product—HLB value as high as 15.4, cloud point >100°C, low foam, and strong resistance to acids and alkalis—the following application scenarios are particularly recommended: Acid Dye Leveling Agent: Utilizing its cationic property in acidic baths, it can effectively slow down the dyeing rate of dyes, eliminating color spots,

Octadecylamine Ethoxylate AC-1820

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Property	Value
CAS No.	26635-75-6
Molecular Formula	C58H119NO20
Appearance	Pale yellow to yellow
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 1150
Cloud Point	>100°C (1%aq. soln.)
Active Content	≥99
pH Value(1%)	6.0~8.0
pH Value(5%)	6.0~8.0
Iodine Value	≤2
Solubility	Readily soluble in water and organic solvents
Surface Tension	~35 (1%soln., 25°C, mN/m)
CMC	~60 mg/L (25°C)
Acid Value	≤1
Hydroxyl Value	~98
Moisture	≤0.5
Density	~1.04 (g/cm³, 25°C)
Kinematic Viscosity	~200 (40°C, mm²/s)
Refractive Index	~1.460-1.470 (20°C)
Flash Point	>200°C
Hygroscopicity	Slightly hygroscopic
Chemical Stability	Stable at room temperature; avoid strong oxidizers
Amine Value	50~60
Tertiary Amine Content	≥95
Penetration	>200 s (canvas disc)
Foam Property	Low foam
Alkali Resistance	Stable under alkaline conditions
Unsaturation	≤0.1 mol/kg
Viscosity	~300 mPa·s (25°C)
Melting Point	~35°C
Low Shear Viscosity	~300 (25°C, mPa·s)
Solid Content	≥99%
Free Alcohol	≤1%
Heavy Metal	≤10 mg/kg
Arsenic	≤2 mg/kg

Octadecylamine Ethoxylate AC-1820

Product Details

Applications

Properties

Safety

Product Overview

Amine Ethoxylate Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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