Laureth-3 Phosphate MOA-3P is an anionic surfactant produced by phosphating lauryl alcohol polyoxyethylene ether. It combines the strong emulsifying power of phosphate groups with the wetting and penetrating properties of polyoxyethylene ether segments, and is widely used in personal care, industrial cleaning, textile printing and dyeing, metal processing, and other fields.
Detailed Description
Laureth-3 Phosphate MOA-3P (Chemical Name: Laureth-3 Phosphate / PEG-3 Lauryl Ether Phosphate) is an anionic surfactant, appearing as a colorless to light yellow transparent liquid. The molecular structure of this product incorporates phosphate groups (providing anionic properties and emulsifying ability) and polyoxyethylene (3) ether segments (giving wetting, penetrating, and hard water resistance), making its interfacial activity far superior to ordinary phosphate surfactants.
The core advantage of MOA-3P lies in its multi-functionality: it can efficiently reduce the oil-water interfacial tension to form a stable and fine emulsion system, while maintaining good structural stability and surface activity in acid, alkali, and high-concentration salt solutions. In addition, this product has low irritation to skin and mucous membranes, and when properly formulated, it is suitable for personal care systems with high safety requirements. Its excellent compatibility also means it can be widely compounded with nonionic, anionic, and amphoteric surfactants to achieve synergistic enhancement.
In terms of physicochemical properties, the pH of a 1% aqueous solution of MOA-3P (25°C) ranges from 1.5 to 3.0, which is acidic and non-flammable. Its acute oral toxicity (LD50) is greater than 2000 mg/kg, which is not classified as acute toxicity. However, direct contact can cause skin irritation (H315) and serious eye irritation (H319), so protective measures should be taken during handling.
Technical Parameters
| Parameter | Specification |
|---|
| Product Name | Laureth-3 Phosphate MOA-3P |
| Chemical Name | Laureth-3 Phosphate |
| Aliases | Laureth-3 Phosphate; PEG-3 Lauryl Ether Phosphate; AEO-3 Phosphate |
| CAS No. | Not available |
| Product Type | Anionic Surfactant |
| Appearance | Colorless to light yellow transparent liquid |
| pH (1% aqueous solution, 25°C) | 1.5 – 3.0 |
| Flammability | Non-flammable |
| Acute Oral Toxicity (LD50) | >2000 mg/kg |
| Skin Irritation | Category 2 (H315) |
| Eye Irritation | Category 2 (H319) |
Application Suggestions
MOA-3P has a wide range of applications. Specific suggestions are as follows:
- Personal Care Products: Used in shampoo, shower gel, facial cleanser, and other systems as a mild anionic surfactant and thickening aid, providing fine foam and a refreshing skin feel while reducing overall formulation irritation.
- Household and Industrial Hard Surface Cleaners: With excellent penetration, emulsification, and degreasing ability, suitable for kitchen cleaners, industrial degreasers, etc., effectively removing oil and dirt from substrates such as metal, glass, and ceramics.
- Textile Pretreatment: As a scouring agent, penetrant, and antistatic agent, accelerates the penetration of working fluids in desizing, scouring, bleaching, and other processes, improving impurity removal efficiency and imparting temporary antistatic properties to fibers.
- Metalworking Fluids: Used as an emulsifier to stably disperse base oil in water, while providing anti-rust protection, suitable for cutting fluids, grinding fluids, and rolling fluid formulations.
- Pesticide Formulations: As an emulsifying dispersant, it enables oil-phase pesticide technical materials to form a stable emulsion in aqueous media, ensuring spontaneous emulsification and uniformity of the spray solution during field dilution.
- Emulsion Polymerization: As a reactive anionic emulsifier, it participates in the polymerization process of acrylate, styrene-acrylic, and other systems, improving the particle size distribution and mechanical stability of the polymer emulsion.
Precautions
- It is recommended to wear impermeable gloves (such as nitrile or butyl rubber) and chemical safety goggles during operation to avoid direct contact with skin and eyes.
- In case of skin contact, immediately wash with plenty of water and soap for at least 15 minutes; in case of eye contact, hold eyelids open and rinse with plenty of water for at least 15 minutes and seek medical attention as soon as possible.
- The product should be stored in a cool, dry, well-ventilated warehouse, keep the container tightly sealed, away from heat sources and open flames, and avoid direct sunlight and rain.
- Immediately reseal after opening to prevent moisture absorption and contamination.
- Dispose of waste in accordance with local regulations, do not discard with household waste.
- This product is acidic (pH 1.5–3.0), neutralization adjustment is required in formulations to achieve the target pH.
