Refined Coconut Oil 6501-98% (Ninal), chemical name Cocamide DEA, CAS number 68603-42-9, is a classic nonionic surfactant produced from refined coconut oil as the starting material through advanced synthesis and purification processes. The product appears as light yellow to amber viscous liquid or paste, with a molecular formula of C₁₁H₂₃CON(CH₂CH₂OH)₂ and other mixtures, with a molecular weight of approximately 287 based on lauric acid derivatives.
Its HLB value ranges from 8 to 10, easily dispersible in water, with excellent thickening, foam stabilization, emulsifying, and detergency capabilities. Its surface tension is 28~32 mN\/m, critical micelle concentration (CMC) is 0.2~0.5 mmol\/L, and it produces rich, stable, and fine foam. The product exhibits good alkali resistance and hard water stability, remaining stable under mild alkaline conditions, and has excellent compatibility with anionic, amphoteric, and nonionic surfactants.
This product has extremely high purity, with an active content of ≥98%, free alcohol content ≤1%, tertiary amine content ≤1%, very low impurities, light color, and mild odor, making it suitable for mid-to-high-end product systems requiring strict quality and batch consistency. Since it is not a polyoxyethylene-type nonionic surfactant, it has no obvious cloud point.
| Parameter Name | Technical Index |
|---|---|
| Appearance | Light yellow to amber viscous liquid or paste |
| CAS Number | 68603-42-9 |
| Molecular Formula | C₁₁H₂₃CON(CH₂CH₂OH)₂ and other mixtures |
| Molecular Weight | Approx. 287 (based on lauric acid derivatives) |
| Ionic Type | Nonionic |
| Active Content | ≥98% |
| Solid Content | ≥98% |
| HLB Value | 8~10 |
| Cloud Point | None (non-polyoxyethylene type, no obvious cloud point) |
| Density (25°C) | 1.05 ± 0.05 g\/cm³ |
| Kinematic Viscosity | ≥200 mm²\/s |
| Refractive Index | 1.460~1.470 |
| Flash Point | ＞150°C |
| pH Value (1% aqueous solution) | 9.0~11.0 |
| pH Value (5% aqueous solution) | 9.0~10.5 |
| Acid Value | ≤1 mg KOH\/g |
| Iodine Value | ≤5 g I₂\/100g |
| Hydroxyl Value | 380~420 mg KOH\/g |
| Amine Value | ≤30 mg KOH\/g |
| Surface Tension | 28~32 mN\/m |
| Critical Micelle Concentration (CMC) | 0.2~0.5 mmol\/L |
| Moisture Content | ≤0.5% |
| Free Alcohol | ≤1% |
| Tertiary Amine Content | ≤1% |
| Heavy Metals | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Foam Performance | Rich and stable foam |
| Penetration Power | Moderate |
| Alkali Resistance | Good, stable under mild alkaline conditions |
| Solubility | Easily dispersible in water |
| Hygroscopicity | Hygroscopic |
| Chemical Stability | Stable at room temperature, avoid prolonged contact with strong acids and alkalis |
Refined Coconut Oil 6501-98% (Ninal) is widely used in personal care products, household detergents, industrial cleaning, and textile printing and dyeing: