According to the technical data of Guoli Chemical, the core advantages of MOA-9P lauryl alcohol polyoxyethylene ether phosphate compared with similar products lie in its **excellent compatibility, balanced comprehensive performance, and high chemical stability**. It is an anionic surfactant modified by phosphation, possessing dual characteristics of both non-ionic and anionic surfactants.
### 1. Unique chemical structure endows dual characteristics
MOA-9P is obtained by phosphation of lauryl alcohol polyoxyethylene ether, and its molecule contains both non-ionic polyoxyethylene ether segments and anionic phosphate groups. This structure enables it to have:
- **Good compatibility**: It can be compounded with various anionic, non-ionic, and cationic surfactants, exerting synergistic effects in complex formulations.
- **Resistance to hard water and acids/alkalis**: It maintains stable performance in high-hardness water and a wide pH range, not prone to precipitation or deactivation, which is superior to many ordinary anionic surfactants.
- **Versatile functions**: It integrates multiple functions such as emulsification, dispersion, wetting, penetration, extreme pressure lubrication, and anti-rust.
### 2. Specific performance data comparison
The technical parameters of MOA-9P are strictly controlled, ensuring its stability and excellent performance.
| Technical Parameter | Typical Value of MOA-9P | Performance Advantage Description |
| :--- | :--- | :--- |
| **HLB Value** | **11-12** | Moderate hydrophilic-lipophilic balance, suitable for preparing oil-in-water (O/W) emulsions, with high emulsification efficiency and good emulsifying ability for various oil phases. |
| **Active Content** | **≥95%** | High active content reduces the usage amount in formulations, lowers costs, and brings more significant performance. |
| **Monoester Content** | **≥80%** | Monoester is the main component providing excellent emulsification, permeability, and hydrophilicity; high monoester content ensures product performance superiority. |
| **Surface Tension (1%, 25℃)** | **Approx. 30-35 mN/m** | Significantly reduces the surface tension of water, endowing excellent wetting, spreading, and penetrating abilities. |
| **Acid Value** | **130~170 mgKOH/g** | Moderate acid value ensures the product has anionic characteristics while providing effective extreme pressure lubrication and anti-rust effects, especially suitable for metalworking fluid systems. |
| **Critical Micelle Concentration (CMC)** | **Approx. 0.01-0.1 g/L** | Low CMC means micelles can be formed at very low concentrations, exerting emulsification, solubilization, and other effects with high efficiency. |
| **Free Phosphoric Acid** | **≤2%** | Low free phosphoric acid content has little impact on the stability of the formulation system and also reduces the risk of corrosion to metal equipment. |
### 3. Wide application advantages
With the above characteristics, MOA-9P shows outstanding performance in multiple fields compared with similar products:
- **In personal care products**: Compared with some highly irritating anionic surfactants, MOA-9P has **moderate skin irritation** and milder affinity, and can be used as a **superfatting agent** to provide cleansing power while imparting a moisturizing feel to the skin, especially suitable for high-end mild products.
- **In metalworking fluids**: It not only provides **extreme pressure lubrication** protection to extend tool life but also has built-in **anti-rust and corrosion inhibition functions**, which is a multi-functional advantage not available in many non-phosphate surfactants.
- **In pesticide formulations**: As an emulsifying dispersant, it can efficiently stabilize emulsions and ensure the application effect of pesticide active ingredients. Its resistance to hard water makes it more reliable than ordinary emulsifiers in complex water quality conditions in the field.
- **In textile and leather industries**: It integrates **anti-static, softening, penetrating, and fatliquoring** functions, simplifying process formulations and improving treatment efficiency.
### Application suggestions and precautions
- **Application suggestions**: MOA-9P is an acidic product. If used in neutral or alkaline systems, it is recommended to neutralize it with an alkali (such as sodium hydroxide, triethanolamine, etc.) to the required pH before adding. The recommended dosage in various application fields is usually between 1% and 10%, the specific amount should be determined by experiments.
- **Safety reminder**: According to GHS classification, MOA-9P is a **skin corrosive substance**, with moderate skin irritation and can cause serious eye damage. **Wear corrosion-resistant gloves, safety goggles, and protective clothing** during operation. In case of contact, rinse immediately with plenty of water and seek medical attention. The product has low acute toxicity, low toxicity to aquatic organisms, and is readily biodegradable.
