MOA-7 (C12-14 fatty alcohol polyoxyethylene (7) ether) is a nonionic surfactant, appearing as a colorless to slightly yellow transparent liquid or white paste, with an HLB value of about 12, easily soluble in water, and a cloud point of 65~70°C. It exhibits good emulsifying, wetting, penetrating, and detergency capabilities, with excellent chemical stability, functioning normally in a wide pH range and hard water environments. If the product is in paste form before use, it is recommended to heat it to about 40°C to naturally melt into a transparent liquid before incorporating it into the formulation to ensure uniform dispersion and accurate measurement.
In various formulation systems, MOA-7 is often compounded with other anionic, nonionic, or amphoteric surfactants to achieve synergistic effects. When used in oil-in-water (O/W) emulsion systems, it is recommended to pair it with an emulsifier of low HLB value, with the total emulsifier dosage determined by the oil phase content and required stability. In strong alkaline cleaning agents (e.g., metal degreasers) or high-concentration electrolyte systems, attention should be paid to its aqueous solution cloud point of 65~70°C, and the operating temperature should not be too high to avoid affecting phase behavior.
Guoli Chemical MOA-7 has an active matter content of ≥99% and a critical micelle concentration of about 0.004%, making it a highly efficient surfactant. A small addition can significantly reduce liquid surface tension and achieve good wetting and spreading. It is recommended to start new formulations with a median addition amount for small-scale trials, and then gradually adjust based on detergency, foam performance, and stability.
| Application Field | Recommended Dosage (as % of total formulation) | Usage Method and Description |
|---|---|---|
| Household and Industrial Hard Surface Cleaners | 2%~8% | Compound with anionic surfactants (e.g., LAS, AES) to provide solubilization and degreasing effects; verify compatibility in strong alkaline formulations. |
| Textile Dyeing and Printing Leveling/Penetrating Agent | 0.5~2 g/L in working solution (based on pure MOA-7) | Use alone or compounded with anionic penetrants, temperature not exceeding 65°C, acts as leveling and penetrating agent in dye baths. |
| Leather Degreasing Agent | 1%~3% | Prepare degreasing working solution with appropriate amount of soda ash or sodium tripolyphosphate to promote removal of natural fats and soaking. |
| Metal Hard Surface Cleaners | 3%~10% | Compound with builders and corrosion inhibitors for heavy-duty degreasing; note cloud point limitation at high concentrations. |
| Cosmetic Emulsifier/Solubilizer (Creams, Lotions, Cleansing Oils) | 2%~5% of oil phase as emulsifier | Use as auxiliary emulsifier with low HLB value emulsifiers to build O/W systems; also can be used as solubilizer for fragrances/essential oils. |
| Pesticide Emulsifier | 2%~6% of pesticide technical | Blend with other nonionic emulsifiers to adjust HLB value to match the technical requirements, ensuring emulsion dilution stability. |
| Emulsion Polymerization Emulsifier | 1%~3% of monomer total | In acrylate or styrene-butadiene systems, act as main micelle nucleation emulsifier or auxiliary stabilizer; control initial addition and post-addition ratio. |
| Paper Deinking Agent | 0.1%~0.5% of oven-dry pulp | In waste paper deinking process, compound with soaps or other nonionic surfactants to enhance ink detachment and suspension. |
| Oilfield Produced Fluid Treatment | 50~500 ppm use concentration | Used as demulsifier intermediate or viscosity reducer component; specific dosage determined by on-site crude oil properties test. |
| Parameter | Typical Value/Range |
|---|---|
| Appearance | Colorless to slightly yellow transparent liquid (40°C), white paste at room temperature |
| Ionic Type | Nonionic |
| Active Matter Content | ≥99% |
| HLB Value | About 12 |
| pH of 1% Aqueous Solution | 5.0~7.0 |
| Cloud Point (1% Aqueous Solution) | 65~70°C |
| Critical Micelle Concentration (CMC) | About 0.004% (w/w, 25°C) |
| Surface Tension (0.1%, 25°C) | About 28.5 mN/m |
| Hydroxyl Value | 100~120 mgKOH/g |
| Density (40°C) | About 0.98 g/cm³ |
| Kinematic Viscosity (40°C) | About 25~35 mm²/s |
| Flash Point (Closed Cup) | ≥150°C |