MOA-9P (CAS number: 39464-66-9) is an anionic phosphate ester surfactant prepared by modifying lauryl alcohol polyoxyethylene ether with phosphoric acid esterification. It appears as a colorless to pale yellow transparent liquid. Its unique molecular structure gives it the dual characteristics of both nonionic and anionic surfactants, exhibiting excellent compatibility and functional synergy in various formulation systems, thus being widely used in many industrial fields.
The core functional advantages of this product are: excellent emulsifying properties efficiently stabilize the oil-water interface, suitable for preparing fine and stable emulsion systems; superior wetting and dispersing capabilities significantly reduce interfacial tension, promoting uniform distribution of active ingredients in the system; at the same time, it has outstanding resistance to acids, alkalis, and hard water, maintaining stable performance under a wide pH range and high hardness water conditions without deactivation or precipitation. In addition, its good foaming and foam stabilizing properties, as well as extreme pressure lubrication and anti-rust functions, further expand its application boundaries.
From a toxicological and environmental perspective, MOA-9P is low in toxicity (rat oral LD₅₀ > 2000 mg/kg), readily biodegradable (28-day biodegradation rate > 80%, OECD 301B test method), low toxicity to aquatic organisms (zebrafish 96-hour LC₅₀ > 100 mg/L), and has no bioaccumulation potential. However, it should be noted that it is moderately irritating to the skin and can cause severe eye damage; protective measures must be taken during handling.
MOA-9P is used as a superfatting agent and emulsifier in formulations of high-end shampoos, body washes, facial cleansers, etc. It provides mild cleansing effects while imparting a moisturizing and comfortable skin feel, avoiding the dryness caused by excessive degreasing of traditional anionic surfactants. Its good foaming and foam stabilizing properties also help enhance the foam texture of the product.
MOA-9P is a key component in synthetic fiber spinning oils, mainly functioning as an antistatic agent and softener. It effectively eliminates static electricity generated during the production and use of synthetic fibers, improving fiber spinnability and post-processing performance; at the same time, it imparts a soft and smooth hand feel to fabrics, enhancing the quality and wearing comfort of textiles.
In leather processing, MOA-9P is used as a fatting agent and penetrant. It helps oils penetrate deeply and evenly into leather fibers, making the leather more supple and full, while also improving its physical strength and water resistance. It is an important functional additive in the leather fatting process.
In formulations of cutting fluids, grinding fluids, and other metalworking fluids, MOA-9P serves as an extreme pressure lubricant additive and anti-rust additive. Under extreme working conditions such as metal cutting and grinding, it forms an effective boundary lubrication protective film at the workpiece-tool interface, reducing friction and wear; it also prevents rust on workpiece and machine tool surfaces, prolongs tool life, and improves machined surface quality.
MOA-9P is used as an emulsifying dispersant in pesticide formulations for preparing emulsifiable concentrates (EC) and oil-in-water emulsions (EW). It helps the active ingredients of pesticides disperse quickly and uniformly in water, forming stable emulsions, preventing oil-water separation and degradation of active ingredients, thereby ensuring stable and consistent field application effects.
In emulsion polymerization reactions of acrylate, styrene-acrylic, and other systems, MOA-9P is used as a high-efficiency emulsifier. It plays a key role in stabilizing monomer droplets and polymer latex particles, helping to control polymer particle size distribution and reaction progress, ultimately affecting the stability and application performance of the emulsion product.
(Note: The following are general product property descriptions. For specific batch parameters, please refer to the quality inspection report issued by Guoli Chemical.)
| Parameter Category | Description |
|---|---|
| Product Name | MOA-9P Lauryl Alcohol Polyoxyethylene Ether Phosphate |
| CAS Number | 39464-66-9 |
| Product Type | Anionic Phosphate Ester Surfactant |
| Appearance | Colorless to pale yellow transparent liquid |
| Ionic Type | Anionic (with nonionic characteristics) |
| HLB Value | Not available (varies with degree of phosphate esterification) |
| Cloud Point | Not available |
| Biodegradability | Readily biodegradable, 28-day degradation rate > 80% (OECD 301B) |
| Ecotoxicity | Zebrafish 96h LC₅₀ > 100 mg/L (low toxicity) |