Cocamide DEA (also known as coco diethanolamide, coconut oil fatty acid diethanolamide, 6501, CDEA, Ninol) belongs to the alkanolamide class of nonionic surfactants. This product is of the 6501-80% type (active content 78.0%~82.0%), manufactured by Guoli Chemical using natural coconut oil as raw material through chemical synthesis. Its molecular formula is a mixture such as C11H23CON(CH2CH2OH)2, with a molecular weight of approximately 280-300. It is easily soluble in water, with an HLB value between 3.6 and 5.8, a cloud point greater than 100°C, and exhibits excellent alkali resistance and hard water tolerance, producing no lime soap precipitation under high alkalinity or hard water conditions.
As a "universal auxiliary agent" in the daily chemical industry, the core advantage of 6501-80% type Cocamide DEA lies in its significant synergistic effect. When compounded with anionic surfactants (such as AES, LAS), it produces a strong synergistic thickening effect, efficiently increasing system viscosity; simultaneously, it significantly enhances foam fineness and stability, resulting in rich and stable foam unaffected by hard water. Its excellent emulsifying and dispersing properties allow it to effectively suspend various oils and waxes, preventing soil redeposition and enhancing detergency against grease.
It should be particularly noted that this product contains free diethanolamine (DEA, typically less than 5%). According to GHS classification, it involves hazard categories of skin irritation (Category 2), serious eye irritation (Category 2), and suspected carcinogenicity (Category 2). During handling, protective gloves and goggles must be worn, and adequate ventilation must be ensured. The overall Ames test result is negative, and it is not directly classified as a carcinogen; environmentally, OECD 301B method shows its biodegradability is greater than 90%, with low bioaccumulation, making it an environmentally friendly auxiliary agent.
| Parameter Item | Specification |
|---|---|
| Product Name | Cocamide DEA / 6501-80% / Ninol |
| CAS Number | 68603-42-9 |
| Appearance | Light yellow to amber viscous liquid |
| Ionic Type | Nonionic surfactant |
| Active Content | 78.0%~82.0% |
| HLB Value | 3.6~5.8 |
| Cloud Point | >100°C |
| pH Value (1% aqueous solution) | 8.5~10.5 |
| pH Value (5% aqueous solution) | 9.0~11.0 |
| Density (25°C) | 1.01~1.05 g/cm³ |
| Kinematic Viscosity (25°C) | 200~400 mPa·s |
| Hydroxyl Value | 220~280 mgKOH/g |
| Amine Value | 120~160 mgKOH/g |
| Acid Value | ≤5 mgKOH/g |
| Iodine Value | ≤10 |
| Saponification Value | ≤10 mgKOH/g |
| Free Fatty Alcohol | ≤2% |
| Tertiary Amine Content | ≤2% |
| Moisture Content | ≤1.0% |
| Solidification Point | <10°C |
| Flash Point | >150°C |
| Refractive Index (25°C) | 1.470~1.475 |
| Surface Tension (0.1%, 25°C) | Approx. 33 mN/m |
| Critical Micelle Concentration (CMC) | Approx. 0.01% (3×10⁻⁴ mol/L) |
| Penetrating Power | >300 |
| Foam Characteristics | Rich foam, good foam stability |
| Alkali Resistance | Good |
| Heavy Metal Content | ≤20 ppm |
| Arsenic Content | ≤2 ppm |
| Packaging Specification | 50kg plastic drum / 200kg plastic drum / IBC tote |
Cocamide DEA 6501-80% type finds wide application in multiple industries. Below are specific usage suggestions for each field: