Question 1

Does OS-15 (AEO-15) cause harm to humans? Does it have an impact on the environment?

Accepted Answer

OS-15 (AEO-15) has mild to moderate irritation to humans under normal use conditions, but it has chronic toxicity to aquatic organisms, and emissions must be strictly controlled. Detailed Description OS-15 (AEO-15) is a non-ionic surctant. According to the GHS classification system, its hazards to human health are mainly manifested in skin irritation (Category 2, H315) and serious eye irritation (Category 2, H319) . Toxicological data shows that the acute oral LD50 in rats is >2000 mg/kg, which is classified as low toxicity; the rabbit skin irritation index is is not carcinogenic, not mutagenic, has no reproductive toxicity, and is not explosive or flammable. Under standard operating conditions, its acute hazard to humans is relatively low. In terms of environmental impact, OS-15 (AEO-15) is classified as Aquatic Chronic Toxicity Category 3 (H412) , meaning it has long-term adverse effects on aquatic organisms. Ecotoxicological data indicates: zebrafish 96h LC50: 1–10 mg/L, algae ErC50: 10–100 mg/L. Therefore, undiluted or large quantities of the product must not be discharged directly into water bodies, sewers, or the environment. Proper treatment must be carried out before discharge. Technical Parameters ItemData GHS Skin Irritation ClassificationCategory 2 (H315) GHS Eye Irritation ClassificationCategory 2 (H319) GHS Aquatic Toxicity ClassificationAquatic Chronic Toxicity Category 3 (H412) Rat Oral LD50> 2000 mg/kg Rabbit Skin Irritation Index< 2 (Mild Irritation) Eye Irritation Score (24–72h)Moderate Irritation Fish (Zebrafish) 96h LC501–10 mg/L Algae ErC5010–100 mg/L Carcinogenicity / Mutagenicity / Reproductive ToxicityNone Explosiveness / FlammabilityNone Application Recommendations In industrial applications, the safety of OS-15 (AEO-15) is fully controllable, provided the following operating procedures are followed: Operators should receive specialized training, wear impermeable gloves (e.g., nitrile gloves) and chemical safety goggles; ensure good ventilation in the workplace to avoid inhaling vapors or mists; thoroughly wash hands and exposed skin after operation. In end-use consumer products such as cosmetics, ensure the formulation concentration complies with regulatory limits and complete necessary safety assessments. Precautions Skin contact: Immediately remove contaminated clothing, rinse with plenty of running water and soap for at least 15 minutes; seek medical attention if irritation persists. Eye contact: Immediately lift eyelids, rinse with plenty of water or saline for 15–20 minutes, and seek immediate medical attention. Ingestion: Rinse mouth with water, do not induce vomiting, drink 1–2 glasses of water to dilute and seek medical attention as soon as possible. Spill treatment: For small spills, collect with inert materials such as sand; for large spills, construct dikes to contain and prevent entry into sewers or surce water bodies. Storage conditions: Cool, dry, well-ventilated, temperature maintained at 5–35°C, avoid freezing and excessive heat. Strictly prohibit direct discharge of untreated product into natural water bodies or the environment.

Question 2

What to do if problems occur during the use of OS-15 (AEO-15)? How to obtain technical support?

Accepted Answer

If problems occur during the use of OS-15 (AEO-15), the issue can be resolved by following the process of "Troubleshooting → Locating → Contacting Official Technical Support". Guoli Chemical provides multi-channel professional technical services. Common Problem Troubleshooting Guide During the use of OS-15 (AEO-15), common problems usually focus on the following aspects. It is recommended to conduct preliminary troubleshooting first: 1. Poor Dissolution/Dispersion — OS-15 is a white waxy solid with relatively slow dissolution at room temperature. It is recommended to pre-disperse or dissolve by stirring with warm water (40~60°C), avoiding direct addition into a cold water system. For rapid dissolution, it can be pre-melted (within the melting point range) before adding to the formulation. 2. Unsatisctory Emulsification Effect — Check whether the oil phase type matches the HLB value of OS-15. OS-15 is suitable for O/W emulsification systems. If the oil phase is highly polar or the required HLB value deviates significantly, consider combining it with low-HLB emulsifiers (such as AEO-3, AEO-5, etc.) to synergistically adjust to the target HLB value. 3. Cloud Point Related Phenomena — As a nonionic surctant, OS-15 has a cloud point characteristic. If the operating temperature approaches or exceeds the cloud point, the product will precipitate from water, leading to performance degradation. Confirm whether the usage temperature is within the appropriate range. If necessary, add anionic surctants to raise the cloud point. 4. Irritation or Safety Issues — In case of skin or eye contact, immediately follow the SDS guidelines: For skin contact, rinse with plenty of running water and soap for at least 15 minutes; for eye contact, rinse with water or saline for 15~20 minutes and seek immediate medical attention (product classified as H315 Skin Irritation, H319 Serious Eye Irritation). How to Obtain Technical Support If the above troubleshooting does not resolve the issue, Hai'an County Guoli Chemical Co., Ltd. provides the following professional technical support channels: Telephone Technical Support — Call Guoli Chemical's official customer service or technical department directly for one-on-one guidance from professional engineers, who can diagnose issues based on specific formulation systems and process conditions. Email/Online Consultation — Submit a problem description (preferably with a detailed formulation overview, process conditions, detailed description and photos of abnormal phenomena) through the official website or corporate email. The technical team will respond within working days. Sample Retesting Service — If product batch quality issues are suspected, provide the batch number to request a retest. Guoli Chemical will assist with quality traceability and analysis. On-Site Technical Support — For major technical difficulties or batch application problems, arrange for technical engineers to visit the site for on-site diagnosis and debugging services. Safety Data Sheet (SDS) and TDS — For complete safe operating instructions, toxicological data, or technical parameter sheets, request the latest SDS and product technical data sheet (TDS) from Guoli Chemical. Suggested Information When Submitting a Problem To help the technical team quickly locate the issue, it is recommended to prepare the following information when contacting: Product name and batch number (OS-15/AEO-15) Specific application field and formulation system (e.g., detergents, textile auxiliaries, pesticide emulsification, etc.) Usage conditions (temperature, pH, water hardness, addition sequence, etc.) Detailed description of abnormal phenomena and comparative reference (e.g., stratification, precipitation, abnormal foam, decreased cleaning power, etc.) Whether other auxiliaries are used in combination and the compounding ratio Notes Always wear impermeable gloves (such as nitrile gloves) and chemical safety goggles when handling OS-15. Maintain good ventilation in the workplace. Do not discharge undiluted or large quantities of product directly into waterways. Dispose of empty containers according to the original product requirements. It is recommended to store the product at 5~35°C, avoiding freezing. If freezing occurs, thaw naturally at room temperature; do not use open flames for heating. For more safety information, refer to the product Safety Data Sheet (SDS) or contact Guoli Chemical directly.

Question 3

How to purchase OS-15 (AEO-15)? What is the minimum order quantity?

Accepted Answer

The price of OS-15 (AEO-15) needs to be inquired in real time. The minimum order quantity is usually based on the minimum packaging specification. Please contact the Guoli Chemical sales team for the latest quotation and purchasing policy. Detailed Description OS-15 (AEO-15) is a core nonionic surctant product of Haian Guoli Chemical Co., Ltd., with the chemical name tty Alcohol Polyoxyethylene (15) Ether, and CAS number 58265-74-0. This product appears as a white to slightly yellow waxy solid and is widely used in various fields such as industrial cleaning, textile printing and dyeing, papermaking deinking, leather processing, metal cleaning, cosmetics, and pesticide emulsification. Due to significant fluctuations in the market price of chemical raw materials affected by upstream raw material costs, supply-demand relationships, and order batch sizes, the reference price in the database is "No fixed listed price" (the actual price is subject to the latest quotation from the sales team). We recommend directly contacting the sales department of Guoli Chemical, providing your required quantity, application direction, and region, to obtain a one-on-one precise quotation and procurement plan. Packaging and Ordering Information ItemDetailed Information Product NameOS-15 (AEO-15) CAS Number58265-74-0 Product AppearanceWhite to slightly yellow waxy solid Optional Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote Minimum Order QuantityNo specific data yet, generally starts from the minimum packaging unit (e.g., 50kg/drum) Price DescriptionRMB/ton, please contact the sales team for a real-time quotation Suggested Purchasing Process To ensure a smooth procurement of OS-15 (AEO-15), it is recommended to follow the process below: Step 1: Confirm Requirements — Specify the required quantity (in tons or drums), packaging preference (50kg drum, 200kg drum, or IBC tote), and application direction. Step 2: Contact Sales — Call the official sales hotline of Guoli Chemical or use the online customer service on the official website to obtain one-on-one service. Provide your requirements to receive a formal quotation. Step 3: Sample Testing (Optional) — For first-time use, you may request a small sample for application performance verification to ensure the product is suitable for your formulation. Step 4: Sign Contract — After confirming the price, delivery time, and transportation method, sign a purchase and sales contract, and arrange payment and shipment. Precautions OS-15 may solidify at low temperatures. For winter transportation, it is recommended to use insulated measures or choose IBC totes for easier heating and thawing. Do not use open flames for heating. The product is non-hazardous, but it is recommended to wear protective gloves and goggles during handling to avoid direct contact with skin and eyes. Before large-scale procurement, it is recommended to request batch quality inspection reports (COA) and safety data sheets (SDS) to ensure the product meets your quality and safety requirements. The above packaging specifications and price information were updated in June 2026, and the actual information is subject to the latest response from the sales team.

Question 4

Does OS-15 (AEO-15) meet environmental protection requirements? Can a test report be provided?

Accepted Answer

OS-15 (AEO-15) meets conventional industrial environmental compliance requirements under strictly regulated operations, but its aquatic toxicity should still be noted, and direct discharge is strictly prohibited. Detailed Explanation According to the GHS classification and ecotoxicological data from Guoli Chemical's product database, OS-15 has chronic toxicity to aquatic life (H412). This means that although its acute toxicity is low, long-term or large-scale exposure in aquatic environments can cause harmful effects on aquatic ecosystems such as fish and algae. Therefore, from the absolute standard of "green environmental protection", it is not a non-toxic and harmless natural environmentally friendly product. However, under the framework of standard industrial chemical management, as long as the ctory has adequate wastewater treatment cilities to ensure that waste liquid is not directly discharged into natural water bodies, OS-15 is a completely acceptable and widely used industrial surctant. The product itself is non-explosive, non-flammable, and non-carcinogenic. The advantages of this product in terms of "environmental friendliness" are mainly reflected in its raw material structure and purity. The AEO series belongs to linear tty alcohol polyoxyethylene ethers, which generally have good primary and ultimate biodegradability. In addition, the OS-15 provided by Guoli Chemical has extremely high purity (active content ≥ 99%), is free of free phosphoric acid, has extremely low heavy metal content (total Pb etc. ≤ 10 mg/kg), and complies with the restrictions on Substances of Very High Concern (SVHC) under EU REACH and other international regulations. It is a high-quality non-ionic surctant. Instructions on Test Report Regarding the official test report (COA) for OS-15 (AEO-15), no downloadable electronic file is currently available in the product database. In actual sales, Guoli Chemical provides a batch inspection report (COA) with each batch of product. You can directly contact the sales manager or customer service representative of Guoli Chemical, provide your procurement needs, and we will provide you with the stamped test report for the corresponding batch. Reference for Typical ctory Test Indicators According to the database, the routine test report issued by Guoli Chemical usually includes the following core indicators. The COA data you receive will be within these specifications: Test ItemTypical Specification ValueTest ItemTypical Specification Value AppearanceWhite to slightly yellow solidpH (1% aqueous solution)5.0~7.0 Active Content≥99%Cloud Point (5% NaCl)81~85°C Hydroxyl Value65±3 mgKOH/gMoisture≤1.0% Acid Value≤1.0 mgKOH/gHeavy Metals (as Pb)≤10 mg/kg Environmental Use Precautions Direct Discharge Prohibited: Wastewater containing OS-15 generated from production or cleaning must be

Question 5

What are the advantages of OS-15 (AEO-15) compared to other similar products?

Accepted Answer

The core advantage of OS-15 (AEO-15) lies in the precise balance of its EO polymerization degree and carbon chain structure, resulting in a high HLB value (14.5), excellent O/W emulsifying power, superior resistance to acids, alkalis, and hard water, while being a tty alcohol-based product that completely eliminates the environmental risks associated with APEO (alkylphenol ethoxylates) products. Detailed Explanation Compared to common low EO number AEO products available on the market (such as AEO-3, AEO-7, AEO-9), Guoli Chemical's OS-15 has a higher degree of ethoxylation (n≈15), resulting in an HLB value as high as 14.5, significantly outperforming AEO-9 (HLB value approx. 12~13). A higher HLB value means that OS-15 exhibits superior dispersion and stabilization of oil-phase components in O/W emulsification systems, making it particularly suitable for cream cosmetic formulations and pesticide emulsifiable concentrates that require fine emulsion particle size and long-term storage stability. Additionally, its cloud point reaches 81~85°C, maintaining excellent surce activity under high-temperature cleaning conditions without precipitation or deactivation due to temperature rise. Compared to traditional TX series (octylphenol ethoxylates) or NP series (nonylphenol ethoxylates), the most significant advantage of OS-15 is its environmental friendliness. It uses natural C12-14 tty alcohol as the starting material, exhibits good biodegradability, and does not produce alkylphenol degradation products with estrogenic effects in the environment. Given the current global trend of restricting and banning APEO substances, replacing TX/NP series products with OS-15 allows companies to easily pass environmental certifications and export inspections, cilitating a transition to "green formulations." Furthermore, OS-15 has very low acute toxicity (rat oral LD50 > 2000 mg/kg), making it milder and safer for use in cosmetics and personal care products. Compared to some high EO number products (e.g., Peregal O-25), OS-15 does not sacrifice penetration and wetting properties while maintaining excellent hydrophilicity. Guoli Chemical's OS-15 controls free alcohol content at ≤0.5%, active matter content at ≥99%, ensuring extremely high purity. In practical applications, it demonstrates strong hard water resistance, insensitivity to calcium and magnesium ions, and wide compatibility with anionic, cationic, and amphoteric surctants, enabling synergistic effects. Whether used as a high-temperature leveling agent in textile dyeing and printing or in metal cleaning with ultrasonic assistance, OS-15 exhibits low foaming and easy rinsing characteristics, avoiding the rinsing difficulties caused by excessive foaming in high EO products. Technical Parameters Key Indicator Guoli Chemical OS-15 (AEO-15) Conventional AEO-9 Conventional TX-10 (NP-10) HLB Value Approx. 14.5 Approx. 12~13 Approx. 13.5~14 Cloud Point (5% NaCl) 81~85°C Approx. 60~70°C Approx. 60~65°C Surce Tension (0.1%, 25°C) Approx. 30 mN/m Active Matter Content ≥99% Typically ≥99% (varies by brand) Typically ≥99% (varies by brand) Free Alcohol Content ≤0.5% ≤1.0% (varies by brand) N/A Raw Material Type Natural tty alcohol (APEO-free) Natural tty alcohol (APEO-free) Alkylphenol (contains APEO, restricted) Foaming Performance Low to medium foam Medium to high foam Medium to high foam (Note: Data for similar products are sourced from general chemical technical literature for reference only. OS-15 data have been verified through Guoli Chemical's product database.) Application Recommendations Preferred for O/W emulsification scenarios: Recommended for systems requiring high hydrophilic emulsification, such as cosmetic creams and lotions, pesticide emulsifiable concentrates (EC/EW), and microemulsions, with a recommended dosage of 1% to 5%. Cleaning under high temperature and hard water conditions: Suitable for metal degreasers, textile scouring agents, and high-temperature jet cleaning, with a recommended proportion of 2% to 8% in the formulation. First choice for green formulations: If the existing formulation uses TX-10 or NP-10, OS-15 can be directly substituted at a 1:1 ratio, maintaining similar HLB value while eliminating the risk of by-products. Precautions OS-15 appears as a white waxy solid with a melting point of approximately 20~25°C. Solidification or delamination may occur under low temperatures in winter, which is a normal physical phenomenon. Before use, place it in a 25~35°C environment for natural thawing and stirring uniformly. Do not heat with open flames. During operation, wear nitrile gloves and safety goggles to avoid direct contact, which may cause mild skin and eye irritation.

Question 6

How to store OS-15 (AEO-15)? What is the shelf life?

Accepted Answer

OS-15 (AEO-15) should be stored in a cool, dry, and well-ventilated place at 5～35°C, with the container kept sealed. The product database does not specify an explicit shelf life; industry practice generally recommends a shelf life of 12 to 24 months under proper storage conditions. Detailed Description OS-15 (AEO-15), chemically known as tty alcohol polyoxyethylene (15) ether, is a nonionic surctant. At room temperature, it appears as a white to slightly yellow waxy solid with a melting point of about 20～25°C and is hygroscopic. Therefore, the storage environment is crucial for maintaining its product quality and performance. This product is chemically stable and does not easily decompose or deteriorate under normal storage conditions, but it must be kept away from strong oxidizers to prevent oxidative degradation. According to the product database provided by Guoli Chemical, OS-15 has good chemical stability under normal storage conditions. Due to its hygroscopic nature, exposure to moisture may cause caking, which does not affect chemical performance but can make handling inconvenient. Thus, the container must be kept sealed. If the product freezes at low temperatures, it should be thawed naturally at room temperature. Direct heating with an open flame is strictly prohibited, as localized overheating may damage the product structure or pose safety risks. Storage Technical Parameters Storage ParameterRequirement Storage Temperature5～35°C (avoid freezing and excessive heat) Storage EnvironmentCool, dry, well-ventilated dedicated warehouse Container StatusKeep sealed to prevent moisture absorption Substances to AvoidIgnition sources, heat sources, strong oxidizers, strong acids, strong bases Spill ProtectionStorage area should be equipped with spill containment cilities (e.g., trays) Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote Packaging InspectionKeep intact, label with product name and safety markings, regularly check inventory status Shelf Life Description The product database of Guoli Chemical does not provide explicit shelf life data for OS-15. Based on industry common practice for nonionic surctants (tty alcohol polyoxyethylene ethers), under strict adherence to the above storage conditions, the recommended usage period for unopened original packaging is generally 12 to 24 months. Actual shelf life is affected by storage temperature, humidity, packaging seal integrity, and other ctors. It is recommended to follow the "first in, first out" inventory management principle. After opening, the product should be used as soon as possible, and the container should be resealed immediately after each use to prevent moisture absorption and contamination. Usage Recommendations Before opening the product, check the packaging for integrity, ensuring no leakage, discoloration, or abnormal odor. If, after opening, the product color significantly darkens (turns dark yellow or brown), stratification occurs, or there is a rancid odor, it may indicate oxidative deterioration. In such cases, discontinue use and contact the supplier for confirmation. For long-term stored products, samples can be taken for small-scale testing before batch use to verify whether key properties such as emulsification and dispersion meet process requirements. Precautions If the product freezes, it must be thawed naturally at room temperature. Direct heating with an open flame or steam blasting is strictly prohibited. Empty containers may contain residues. Do not reuse for other purposes without thorough cleaning. Do not discharge undiluted or large quantities of the product directly into water bodies, sewers, or the environment. Wear impermeable gloves and chemical safety goggles during handling to avoid skin and eye contact. For more precise shelf life information, it is recommended to directly consult the Technical Department of Guoli Chemical for batch-specific test reports.

Question 7

What safety precautions should be taken when using OS-15 (AEO-15)?

Accepted Answer

OS-15 (AEO-15) is a skin and eye irritant chemical. During operation, special attention must be paid to protect skin and eye contact, while also avoiding discharge into water bodies to prevent chronic aquatic toxicity hazards. Detailed Explanation The GHS hazard classification of OS-15 (AEO-15) includes three categories: Skin irritation category 2 (H315), Serious eye damage/eye irritation category 2 (H319), and Chronic aquatic toxicity category 3 (H412). This means the product has clear moderate irritation to skin and eyes, and can cause long-term adverse effects on the aquatic environment. Fortunately, the product itself is not explosive, flammable, carcinogenic, mutagenic, or reproductively toxic, so no special precautions are required for fire safety. In practical operation, personal protective specifications must be strictly followed. Skin contact can cause irritation and rash, while eye contact may cause moderate eye damage. Therefore, wearing impermeable gloves (e.g., nitrile gloves) and chemical safety goggles throughout the process is essential. Additionally, appropriate protective clothing should be worn, inhalation of vapors or mists should be avoided, the workplace should be well ventilated, and hands and exposed skin should be thoroughly washed after operation. Eating, drinking, smoking, and storing food in the workplace are prohibited to prevent accidental ingestion. From an ecological safety perspective, the product is chronically toxic to aquatic organisms — the 96-hour LC50 for fish (zebrafish) is 1–10 mg/L, and the ErC50 for algae is 10–100 mg/L. Therefore, it is strictly forbidden to discharge undiluted or large quantities of the product directly into water bodies, sewers, or the environment. In case of leakage, inert absorbent materials (e.g., sand, vermiculite) should be used to collect and dispose of the spill; for large spills, dikes should be constructed to contain the material and prevent it from entering drainage systems. Waste containers should not be used for other purposes until thoroughly cleaned. Safety Data Overview Safety IndicatorData/Description GHS ClassificationSkin irritation category 2 (H315), Serious eye damage/eye irritation category 2 (H319), Chronic aquatic toxicity category 3 (H412) Acute toxicity (rat oral LD50)> 2000 mg/kg Skin irritation (rabbit)Irritation index < 2 (mild irritation) Eye irritation (24-72h)Moderate irritation Fish toxicity (zebrafish 96h LC50)1–10 mg/L Algal toxicity (ErC50)10–100 mg/L Flammability/ExplosivityNone Carcinogenicity/MutagenicityNone Application Recommendations When using OS-15 in industrial formulations, it is recommended to operate in a well-ventilated compounding area, using closed or semi-closed feeding methods to reduce splashing and vapor exposure. For compounded product development, OS-15 has good compatibility with nonionic, anionic, and cationic surctants, but when used together with strong acids, strong bases, or strong oxidizers, small-scale tests should be conducted first to avoid performance degradation due to prolonged contact under extreme pH conditions. In end-use applications such as detergents, textile auxiliaries, and pesticide emulsifiers, the OS-15 content in the final product is usually diluted to a safe range. However, it is still recommended to include appropriate irritation warnings on the final product label, especially for cosmetic and household cleaning product formulations that may come into direct contact with skin. Precautions First Aid Measures: In case of skin contact, immediately remove contaminated clothing and rinse with plenty of running water and soap for at least 15 minutes; for eye contact, lift eyelids and rinse with plenty of water or saline for 15–20 minutes and seek medical attention immediately; if inhaled, move to fresh air quickly; if swallowed, do not induce vomiting, drink 1–2 glasses of water to dilute and seek medical attention as soon as possible. Storage Requirements: Store in a cool, dry, and well-ventilated warehouse, with temperature maintained at 5–35°C, and avoid freezing. If the product freezes, thaw naturally by warming up; do not heat with an open flame. Keep containers tightly closed and away from strong oxidizers, strong acids, and strong bases. Spill Disposal: For small spills, use sand or vermiculite to absorb and collect; for large spills, construct dikes, transfer with explosion-proof pumps to dedicated collectors, and prevent entry into sewers or surce waters. Firefighting: Although the product itself is not flammable, it may release irritating fumes in a fire. Extinguishing media can include water spray, alcohol-resistant foam, dry powder, or carbon dioxide. Firefighters must wear self-contained positive pressure breathing apparatus.

Question 8

How to use OS-15 (AEO-15)? What is the recommended dosage?

Accepted Answer

OS-15 (AEO-15) is a white waxy solid at room temperature. Before use, it needs to be heated to melt, and then added to the formulation system at a recommended dosage of 0.1% to 10% depending on the specific application. Detailed Description OS-15 (AEO-15), chemically known as tty alcohol polyoxyethylene (15) ether, is a nonionic surctant. The product appears as a white waxy solid at room temperature (melting point approximately 20~25Â°C, sourced from the Guoli Chemical Product Database). Therefore, it must be heated to above 25Â°C to melt into a flowable liquid before use, and then added according to the formulation ratio. It is recommended to preheat the product drum in a 25~35Â°C water bath or constant temperature environment until it completely changes into a transparent to slightly yellow liquid, then weigh and use. Due to its slight hygroscopicity, it should be used as soon as possible after melting, and the container should be kept sealed. The product has an HLB value of 14.5 (sourced from the Guoli Chemical Product Database), making it a hydrophilic nonionic surctant that is easily soluble in water and can be directly dispersed or dissolved in the aqueous phase. In compounding systems, OS-15 can be flexibly combined with anionic, cationic, and other nonionic surctants for synergistic effects. In typical industrial formulations, it can be directly added to the aqueous phase with stirring for dissolution, or premixed with other surctant components before being added to the main system. If the formulation contains salts or alkaline additives, OS-15 still maintains excellent stability under such conditions. Technical Parameters (Related to Usage) ParameterValueData Source HLB Value14.5Guoli Chemical Database Melting PointApproximately 20~25Â°CGuoli Chemical Database Active Matter Contentâ‰¥99%Guoli Chemical Database Cloud Point (5% NaCl)81~85Â°CGuoli Chemical Database pH of 1% Aqueous Solution5.0~7.0Guoli Chemical Database Surce Tension (0.1%, 25Â°C)Approximately 30 mN/mGuoli Chemical Database Critical Micelle Concentration (CMC)Approximately 0.005% (by weight)Guoli Chemical Database Foaming CharacteristicsLow to medium foamGuoli Chemical Database SolubilityEasily soluble in waterGuoli Chemical Database Application Recommendations The Guoli Chemical Product Database does not provide specific recommended dosages for each application field. The following are industry general reference dosages based on this product type (nonionic surctant with HLBâ‰ˆ14.5): Application FieldRecommended Dosage (wt%)Usage Instructions Industrial and household detergents2%~8%Heat to melt, then add to the aqueous phase, and compound with other surctants Textile dyeing leveling agent1%~5% (based on dye weight)Add as an aqueous solution to the dye bath during the initial dyeing stage Coating/ink dispersant0.2%~2%Add during the grinding stage, premix with pigment before grinding Paper deinking agent0.1%~0.5%Add diluted solution during the pulping process Leather processing auxiliary0.5%~3%Add to the working solution during soaking or degreasing processes Metal surce cleaner2%~6%Formulate cleaning working solution with alkaline additives Cosmetic emulsifier (creams/lotions)1%~5%As O/W emulsifier, can be added to either oil phase or water phase Pesticide emulsifier and wetting agent3%~10% (based on total formulation weight)Used for preparing pesticide emulsifiable concentrate or emulsion in water Note: The above dosages are industry general reference ranges. Actual dosages should be determined through experimental optimization based on specific formulation systems, process conditions, and performance requirements. The low foaming characteristic of OS-15 makes it particularly suitable for spray cleaning and mechanical cleaning scenarios requiring low foam. Its low CMC value (approximately 0.005%) means it can exert surce activity at very low concentrations. Precautions Melting operation: The heating temperature should not be too high. It is recommended to preheat in a 25~35Â°C water bath. Direct flame heating is strictly prohibited. If frozen, allow natural thawing at room temperature. Addition method: If the formulation temperature is low, it is recommended to pre-melt OS-15 first and then slowly add it to the aqueous phase with stirring to avoid uneven dispersion due to rapid temperature drop causing the product to re-solidify. Personal protection: The product is classified as skin irritant (H315) and serious eye irritant (H319). Nitrile impermeable gloves and chemical safety goggles must be worn during operation. Environmental safety: The product has chronic aquatic toxicity (H412). Do not discharge undiluted product directly into water bodies or sewers. Storage: Store at 5~35Â°C, avoid freezing and excessive heat. Keep the container tightly closed and away from strong oxidizers and strong acids/bases. The above industry reference dosages are based on general application practices for nonionic surctants. Specific formulation ratios should be determined based on laboratory trial data.

Question 9

Which industries and processes is OS-15 (AEO-15) mainly used in?

Accepted Answer

OS-15 (AEO-15) is widely used in many industries such as cleaning, textile, papermaking, leather, metal processing, cosmetics, and pesticides, functioning as a nonionic surctant with core functions including emulsification, dispersion, wetting, and solubilization. Detailed Description OS-15 (AEO-15) is chemically named tty alcohol polyoxyethylene (15) ether, belonging to the nonionic surctant category. The product appears as a white waxy solid and, thanks to its excellent emulsifying ability, superior wetting and dispersing properties, outstanding solubilization effect, and strong resistance to acids, alkalis, and hard water, has become an indispensable functional additive in many industrial fields. The outstanding advantage of this product lies in its broad compatibility, allowing it to be compounded with anionic, cationic, and other nonionic surctants to produce synergistic effects, which demonstrates extremely high application flexibility in complex formulation systems. Meanwhile, it maintains structural integrity and performance stability over a wide pH range, enabling it to adapt to various harsh working conditions. Main Application Industries and Processes Application IndustrySpecific Process/UseFunction Description Industrial and Household CleaningLaundry detergent, dishwashing detergent, hard surce cleaning formulationsAs a high-efficiency nonionic surctant, significantly improves detergency, emulsification, and dispersion ability Textile Printing and DyeingLeveling agentWith excellent penetration and leveling properties, helps dyes evenly deposit on fibers, reducing color spots and color differences, improving dyeing quality Paint, Ink, Dye ProcessingDispersantHas good dispersion and stabilization effects on solid particles such as pigments and fillers, preventing agglomeration and settling Papermaking IndustryDeinking agentPromotes ink detachment and emulsification dispersion during waste paper deinking, improving fiber yield and pulp brightness Leather ProcessingSoaking, degreasing, tliquoring, etc.Enhances penetration and emulsification effects, making leather soft and plump with excellent hand feel Metal Surce TreatmentSurce cleanerEffectively removes contaminants such as oil, cutting fluids, and polishing pastes from metal surces; works better with ultrasonic or spray cleaning CosmeticsO/W emulsifier for creams and lotionsProvides a fine and stable emulsion system, giving good spreadability and skin feel PesticidesEmulsifier and wetting agentImproves dispersion and wetting spreading ability of active ingredients in water, enhancing adhesion and penetration of the spray liquid on plant leaves and insect surces Application Suggestions In formulation design, OS-15 (AEO-15) is often used in combination with other types of surctants to achieve synergistic effects. For example, combining with anionic surctants (such as LAS, AES) in detergent formulations can improve detergency and foam performance; compounding with nonionic or anionic emulsifiers in pesticide formulations can optimize emulsion stability. It is recommended to determine the optimal dosage through HLB value matching and experimental optimization based on specific process requirements. If the product freezes before use, it can be thawed naturally at room temperature and then used normally; do not heat with an open flame. Since this product is a waxy solid, it is recommended to pre-melt it or dissolve it in warm water during batching for easy handling and uniform dispersion. Precautions This product is classified as causing skin irritation (H315) and serious eye irritation (H319). During operation, be sure to wear impermeable gloves (e.g., nitrile gloves) and chemical safety goggles. Avoid discharging undiluted or large quantities of product directly into water bodies or sewers to prevent chronic hazards to the aquatic environment (H412). The storage temperature should be maintained between 5 and 35°C, avoiding freezing and excessively high temperatures. Keep containers tightly closed, away from strong oxidizing agents, strong acids, and strong bases. In case of skin or eye contact, rinse immediately with plenty of running water for at least 15 minutes and seek medical attention if necessary.

Question 10

What are the physicochemical technical parameters of OS-15 (AEO-15)?

Accepted Answer

OS-15 (AEO-15) is a white waxy nonionic surctant with an HLB value of about 14.5. It is easily soluble in water and has excellent emulsifying, wetting, and dispersing properties. Its physicochemical parameters cover a complete parameter system including molecular weight, density, viscosity, and surce tension. Detailed Description The chemical name of OS-15 (AEO-15) is tty alcohol polyoxyethylene (15) ether (CAS No.: 58265-74-0). It is also known as AEO-15, Peregal OS-15, Peregal O-15, C12-14 alcohol polyoxyethylene (15) ether, etc., and belongs to the tty alcohol polyoxyethylene ether nonionic surctant category. Its molecular formula is C12-14H25-29O(C2H4O)nH (n≈15), molecular weight is approximately 846, appearance is a white to slightly yellow waxy solid, melting point is about 20~25°C, solid at room temperature, and easy to flow after heating. The product has an active content ≥99%, free alcohol content ≤0.5%, solid content ≥99%, and is a high-purity surctant. The HLB value is about 14.5, making it a hydrophilic O/W emulsifier. The cloud point is 81~85°C (measured in 5% NaCl aqueous solution), and the pH values of 1% and 5% aqueous solutions are both maintained in the neutral range of 5.0~7.0. It has good chemical stability, is stable under conventional alkaline conditions, and does not react adversely with most chemicals under normal storage conditions, but should avoid contact with strong oxidizing agents. This product features low to moderate foaming characteristics, with a penetration force >60 seconds (standard canvas settling method), surce tension of about 30 mN/m (0.1% aqueous solution, 25°C), and critical micelle concentration (CMC) of about 0.005% (mass fraction), indicating that it can form micelles and exert surce activity at very low concentrations. The product is slightly hygroscopic, has a flash point >200°C, is non-explosive, and non-flammable. Heavy metal content ≤10 mg/kg, arsenic content ≤2 mg/kg, meeting environmental and safety standards for industrial applications. Technical Parameters Parameter ItemTechnical IndexRemarks/Test Conditions Chemical Nametty alcohol polyoxyethylene (15) ether— CAS No.58265-74-0— Molecular FormulaC12-14H25-29O(C2H4O)nH, n≈15— Molecular WeightApprox. 846— AppearanceWhite to slightly yellow waxy solidVisual Ionic TypeNonionic— Active Content≥99%— Solid Content≥99%— Free Alcohol≤0.5%— Moisture≤1.0%— HLB Value14.5— Cloud Point81~85°C5% NaCl aqueous solution pH (1% aqueous solution)5.0~7.025°C pH (5% aqueous solution)5.0~7.025°C Melting PointApprox. 20~25°C— DensityApprox. 1.02 g/cm³25°C Kinematic ViscosityApprox. 150 mm²/s25°C Low Shear ViscosityApprox. 150 mPa·s25°C Refractive Index1.456~1.46020°C Surce TensionApprox. 30 mN/m0.1% aqueous solution, 25°C Critical Micelle Concentration (CMC)Approx. 0.005% (mass fraction)25°C Hydroxyl Value65±3 mgKOH/g— Acid Value≤1.0 mgKOH/g— Saponification Value≤0.5 mgKOH/g— Iodine Value≤2 gI₂/100g— Unsaturation＜0.01 mol/kg— Penetration Force＞60 sStandard canvas settling method Foam CharacteristicsLow to moderate foaming— SolubilityEasily soluble in water— Flash Point＞200°C— Heavy Metals≤10 mg/kg— Arsenic≤2 mg/kg— HygroscopicityHygroscopic— Chemical StabilityStable under normal conditions, avoid strong oxidizing agents— Alkali ResistanceGood, stable under conventional alkaline conditions— Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote— Application Suggestions OS-15(AEO-15)

OS-15 (AEO-15)

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Property	Value
CAS No.	58265-74-0
Molecular Formula	C12-14H25-29O(C2H4O)nH, n≈15
Appearance	White to slightly yellow
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 846
Cloud Point	81~85 (5%NaCl)
Active Content	≥99
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	≤2
Solubility	Readily soluble in water
Surface Tension	~30 (mN/m, 0.1%aq. soln., 25°C)
CMC	~0.005% (mass fraction)
Acid Value	≤1.0
Saponification Value	≤0.5
Hydroxyl Value	65±3
Moisture	≤1.0
Density	~1.02 g/cm³ (25°C)
Kinematic Viscosity	~150 mm²/s (25°C)
Refractive Index	1.456~1.460 (20°C)
Flash Point	>200°C
Hygroscopicity	Hygroscopic
Chemical Stability	Stable under normal storage; avoid strong oxidizers
Penetration	>60 s (standard canvas disc)
Foam Property	Low to medium foam
Alkali Resistance	Good (stable under normal alkaline conditions)
Unsaturation	<0.01 mol/kg
Viscosity	~150 mPa·s (25°C)
Melting Point	~20~25°C
Low Shear Viscosity	~150 mPa·s (25°C)
Solid Content	≥99%
Free Alcohol	≤0.5%
Heavy Metal	≤10 mg/kg
Arsenic	≤2 mg/kg