What Is CAS 9002-92-0 Used For?

CAS 9002-92-0 generally identifies polyoxyethylene lauryl ether, a nonionic surfactant made by attaching ethylene oxide units to lauryl alcohol. I use this CAS number as a starting point for discussing wetting, emulsifying, detergency, solubilizing, and interfacial-control applications. In water-based formulations, it may also support pigment or particle wetting and dispersion, but its suitability depends on the exact ethoxylation level, concentration, formulation chemistry, and performance requirements. Because commercial grades can differ, buyers should confirm the product specification rather than relying on the CAS number alone.

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Key Takeaways

• CAS 9002-92-0 is commonly associated with polyoxyethylene lauryl ether, also described as a lauryl alcohol ethoxylate or polyoxyethylene alkyl ether.
• Its primary functions include reducing surface tension, improving wetting, supporting emulsification, and assisting cleaning or solubilization.
• It can be relevant to water-based dispersant systems, although it should not automatically be treated as a complete dispersant for every pigment, filler, or resin.
• Ethylene oxide content, cloud point, HLB behavior, active content, water quality, and compatibility should be checked before bulk purchasing.

What Is CAS 9002-92-0?

CAS 9002-92-0 refers to a nonionic surfactant family based on lauryl alcohol and ethylene oxide. The hydrophobic lauryl chain interacts with oils and other low-polarity materials, while the polyoxyethylene portion interacts with water. This dual structure allows the material to position itself at interfaces and modify how water, oil, solids, and air interact.

The CAS number does not, by itself, define one universal commercial grade. Suppliers may offer different ethoxylation levels, active contents, appearance specifications, and application profiles under the same broad chemical identity. For that reason, I recommend requesting the technical data sheet, safety data sheet, test methods, and product-specific specification before approving the material for production.

Why the Exact Grade Matters

The number of ethylene oxide units affects water solubility, hydrophilic-lipophilic balance, cloud point, foaming behavior, and compatibility with other formulation ingredients. A lower-ethoxylated grade may show stronger affinity for oily phases, while a higher-ethoxylated grade may provide greater water compatibility. These are general formulation tendencies, not guaranteed outcomes for every product, so laboratory screening remains important.

Core Functions of CAS 9002-92-0

Wetting and Surface-Tension Reduction

One major use of polyoxyethylene lauryl ether is to improve the contact between water and a solid or liquid surface. In a water-based formulation, better wetting can help water spread across powders, fibers, substrates, pigments, or contaminated surfaces. This function may reduce floating powder, dry agglomerates, and uneven surface coverage during mixing or application.

Performance is often influenced by dosage, temperature, water hardness, pH, and the surface chemistry of the material being wetted. A small change in concentration can affect foam and final surface properties, so I recommend testing a practical dosage range instead of selecting a single level without screening.

Emulsification and Solubilization

CAS 9002-92-0 can help stabilize or facilitate mixtures containing water and oil-compatible ingredients. It may support the formation of an emulsion by reducing interfacial tension and creating a surfactant layer around dispersed droplets. It can also assist the incorporation of some fragrances, oils, hydrophobic additives, or processing aids into aqueous systems.

It is not a universal emulsifier for every oil phase. Emulsion stability also depends on droplet size, viscosity, temperature cycling, preservatives, electrolytes, mixing energy, and the selected co-emulsifiers. A formulation that appears stable after 24 hours may still separate during longer storage, so buyers should define the required storage and transport conditions.

Cleaning and Detergency

The material’s ability to interact with both water and oily soils makes it relevant to cleaning formulations. It may assist the removal of grease, process residues, and particulate soil from hard surfaces, textiles, industrial equipment, or other substrates. Its nonionic character can be useful where compatibility with anionic or cationic ingredients must be considered carefully.

Cleaning performance should be evaluated with the actual soil, substrate, water quality, temperature, and rinsing process. Foam height is not the same as cleaning efficiency, and a low-foam or controlled-foam grade may be more suitable for automated equipment than a highly foaming grade.

Application Scenarios

Water-Based Dispersant and Pigment Systems

In water-based coatings, inks, color concentrates, and mineral slurries, CAS 9002-92-0 may contribute to initial powder wetting and help reduce interfacial resistance during mixing. This can be useful when pigments or fillers are difficult to incorporate into water. However, wetting is only one part of dispersion stability; a dedicated polymeric dispersant may still be required to prevent flocculation during storage.

I suggest evaluating particle-size distribution, viscosity, color strength, sedimentation, foam, and re-dispersibility after storage. For example, a test program may compare samples after 24 hours, 7 days, and 30 days rather than judging performance immediately after production. The appropriate evaluation period should reflect the buyer’s real shelf-life requirement.

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Textile and Fiber Processing

Nonionic surfactants of this type may be used in textile auxiliaries, scouring systems, wetting baths, and finishing formulations. Their role can include improving liquor penetration, helping remove oily impurities, and supporting more uniform contact between the treatment bath and the fiber surface. The final choice depends on fiber type, bath temperature, foam control, and compatibility with dyes or finishing agents.

Industrial and Institutional Cleaning

CAS 9002-92-0 may be considered for aqueous cleaners, degreasers, and processing aids where wetting and soil removal are required. The formulation developer should check residue, rinsability, foam profile, and material compatibility with metals, plastics, coatings, rubber, and painted surfaces. A laboratory coupon test can help identify staining, swelling, dulling, or corrosion risks before plant trials.

Agricultural and Specialty Formulations

Some nonionic surfactants are used as wetting or spreading aids in agricultural and specialty formulations. Whether CAS 9002-92-0 is appropriate depends on the active ingredient, regulatory requirements, crop or substrate, application method, and local product registration rules. I do not recommend assuming suitability for agricultural use without confirming the applicable regulations and the supplier’s product documentation.

Types and Material Options to Compare

When sourcing CAS 9002-92-0, buyers should compare product grades by functional behavior rather than CAS identity alone. Useful variables include nominal ethoxylation level, active matter, water content, color, cloud point, hydroxyl value where provided, pH of a defined solution, and storage conditions. A product may be supplied as a liquid, paste, or solid depending on composition and temperature.

For example, cloud point may be reported in degrees Celsius, and a buyer may need a grade that remains consistent across a process operating at 25 °C or 40 °C. Those temperatures are not universal specifications; they illustrate why process temperature must be considered during selection. I recommend comparing supplier data under the same test conditions because different methods can produce results that are difficult to compare directly.

Buyer Selection Factors

Match the Surfactant to the Formulation Objective

First, define whether the primary goal is wetting, emulsification, cleaning, solubilization, or particle dispersion. A product optimized for rapid wetting may not provide sufficient long-term stabilization, while a grade selected for emulsification may create more foam than a coating or ink process can tolerate. Clear performance priorities make supplier comparison more meaningful.

Check Compatibility Before Bulk Approval

Screen CAS 9002-92-0 with the actual resin, pigment, filler, solvent, preservative, electrolyte, and defoamer package. Observe phase stability, viscosity, foam, color, odor, and separation after mixing and storage. I also recommend checking compatibility at the intended use concentration, because behavior at 1% may differ significantly from behavior at 0.1%.

Review Supply and Documentation

For B2B purchasing, technical suitability is only one part of the decision. Buyers should confirm packaging, batch traceability, shelf life, minimum order quantity, lead time, export documents, and whether the supplier can provide a consistent specification across repeat orders. Any regulatory or market-specific documentation should be requested for the destination country and intended application.

How Yuking Can Support Sourcing

At Yuking, I approach CAS 9002-92-0 as a specification-matching project rather than a simple CAS-number transaction. I can help buyers clarify the intended use, compare relevant product parameters, and identify which information must be confirmed before sampling. This is particularly important for water-based systems where foam, cloud behavior, dispersion stability, and compatibility can affect production efficiency.

Our support can include product document coordination, sample discussions, packaging options, and communication about shipment requirements. I avoid treating a general product description as proof of performance in a customer’s formulation. Instead, I recommend a controlled sample evaluation using the buyer’s raw materials and process conditions.

Conclusion: What Is CAS 9002-92-0 Used For?

CAS 9002-92-0 is generally used as a nonionic surfactant for wetting, emulsification, detergency, solubilization, and interfacial control. It may support water-based dispersant applications by improving the wetting of pigments, fillers, or other particles, but it may not replace a dedicated dispersant when long-term stabilization is required. The best grade depends on ethoxylation level, active content, cloud point, foam behavior, compatibility, and the target process.

As a next step, prepare your application details, including the formulation type, required dosage range, operating temperature, target pH, foam tolerance, packaging preference, and expected order volume. Contact Yuking with these requirements so I can help identify the relevant CAS 9002-92-0 specification and arrange a practical evaluation path for your project.

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