MOA-9P Laureth-4 Phosphate (CAS: 39464-66-9) is a colorless to light yellow transparent liquid at room temperature, with medium viscosity, and easily soluble in water. Since the original product is strongly acidic (1% aqueous solution pH value is only 1.5~3.0), direct addition to the formulation system may cause local pH drop or gel formation. Therefore, it is recommended to slowly add it to pre-prepared deionized water under stirring, dilute to a 10%~20% stock solution, then neutralize to the required pH with a dilute base (e.g., NaOH, KOH, or triethanolamine) before use. If the formulation itself is an alkaline system, it can be added directly under sufficient stirring and fully neutralized.
This product possesses dual characteristics of nonionic and anionic surfactants, with an HLB value of 11~12, and outstanding emulsifying, wetting, and dispersing capabilities. Attention should be paid when adding at different process stages: when used as an emulsifier, it should be added before mixing the oil and water phases; when used as an antistatic agent or lubricating additive, it is usually added in the later mixing stage of the aqueous system. The product remains stable over a wide pH range and under high hardness water conditions, but is not resistant to strong bases. The phosphate ester bond is prone to hydrolysis under strongly alkaline conditions, so prolonged exposure to environments with pH >10 should be avoided.
| Parameter Name | Value |
|---|---|
| Appearance | Colorless to light yellow transparent liquid |
| Ionic Type | Anionic |
| Active Content | ≥95% |
| HLB Value | 11~12 |
| pH of 1% Aqueous Solution (25℃) | 1.5~3.0 |
| Acid Value | 130~170 mgKOH/g |
| Density (25℃) | Approx. 1.05 g/cm³ |
| Kinematic Viscosity (25℃) | Approx. 100-200 mm²/s |
| Monoester Content | ≥80% |
| Surface Tension | Approx. 30-35 mN/m (1% aqueous solution, 25℃) |
| Solubility in Water | Easily soluble in water |
| Chemical Stability | Stable under normal conditions, not resistant to strong acids and bases |
Based on industry application data from the Guoli Chemical database, the recommended dosages for various fields are as follows (actual amounts need to be confirmed through formulation experiments):
| Application Field | Recommended Dosage | Usage Description |
|---|---|---|
| Personal Care Products (Shampoo, Body Wash, Facial Cleanser) | 1%~5% | Superfatting agent and mild emulsifier, increasing foam fineness and post-wash moisturizing feel |
| Textile Antistatic Agent/Fiber Oil | 2%~8% | Eliminates static electricity on synthetic fibers, imparting soft and smooth hand feel to fabrics |
| Leather Fatliquoring Agent/Penetrant | 3%~10% | Promotes uniform penetration of oil into the leather interior, improving softness and water resistance |
| Metalworking Fluids (Cutting Fluids, Grinding Fluids) | 2%~6% | Extreme pressure lubricant additive and anti-rust component, extending tool life |
| Pesticide Emulsifiable Concentrate/Emulsion in Water | 3%~8% | Emulsifying dispersant, helping active ingredients uniformly disperse in water to form stable emulsions |
| Emulsion Polymerization (Acrylate, Styrene-Acrylic Systems) | 1%~3% | Stabilizes monomer droplets and latex particles, assisting in controlling particle size distribution |
Note: The dosages in the table are weight percentages (based on total formulation weight) and are industry reference values. Specific usage amounts should be determined through small-scale and pilot-scale tests, and attention should be paid to adjusting the system pH to ensure optimal performance of the product.