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Runtec® SMLT-91 is a chlorine-free amino acid-based surfactant synthesized directly from fatty acids. Its manufacturing process is more environmentally friendly than acyl chloride synthesis. Compatible with anionic, cationic, nonionic, and other amphoteric surfactants, it delivers exceptional foaming performance with abundant, fine, and stable foam across a wide pH range. Upon application, it endows the skin with a refreshing sensation and renders the hair soft. It boasts excellent biodegradability, ensuring safe usage without any adverse impact on the environment. It can be utilized in high-end hair and skin care cosmetics such as facial cleansers, body washes, and shampoos, as well as baby products.
| Parameter Name | Specification / Value |
|---|---|
| Appearance | White to grayish-white/ light brown hard solid |
| Odor | Characteristic odor |
| Color (5% aqueous solution, 25°C, Pt-Co) | ≤ 200 |
| Active substance (%) (MW=343) | 88.0 – 94.0 |
| pH (5% aqueous solution, 25°C) | 6.0 – 8.0 |
| Free fatty acids (%) (MW=200) | ≤ 4.5 |
| Sodium chloride (%) | ≤ 0.1 |
| Arsenic (mg/kg) | ≤ 5 |
| Cadmium (mg/kg) | ≤ 2 |
| Cobalt (mg/kg) | ≤ 1 |
| Chromium (mg/kg) | ≤ 1 |
| Mercury (mg/kg) | ≤ 1 |
| Nickel (mg/kg) | ≤ 1 |
| Lead (mg/kg) | ≤ 5 |
| Stibonium (mg/kg) | ≤ 5 |
| Total heavy metals (Lead, mg/kg) | ≤ 20 |
Runtec® SMLT-91 is ideal for high-end hair and skin care cosmetics. Common applications include facial cleansers, body washes, shampoos, and gentle baby care products.
It is synthesized directly from fatty acids without using chlorine, making its manufacturing process cleaner and more environmentally friendly than traditional acyl chloride synthesis. Additionally, it offers excellent biodegradability.
It creates abundant, fine, and stable foam across a broad pH range. When used in products, it leaves the skin feeling refreshed and makes the hair soft and manageable.
It shows outstanding compatibility and can be easily formulated alongside anionic, cationic, nonionic, and other amphoteric surfactants.
It appears as a white to grayish-white or light brown hard solid with a characteristic odor. The active substance content ranges from 88.0% to 94.0%, and it maintains a pH value of 6.0 to 8.0 in a 5% aqueous solution.
The product is subject to strict purity controls, with total heavy metals (calculated as Lead) limited to ≤ 20 mg/kg, ensuring high safety standards for cosmetic applications.
