
Sodium lauryl sulfoacetate (SLSA) is a mild anionic surfactant derived from plant-based raw materials (such as coconut oil and palm oil). Its mf is C14H29NaO5S, and its mw is 332.43, making it compliant with natural cosmetics standards. Its macromolecular structure makes it less likely to penetrate the skin and results in low skin irritation, distinguishing it from traditional sulfate surfactants.
| Item | Specification |
| Melting point | >142°C (decomposition) |
| Density | 31.2–1.3 g/cm³ |
| Solubility | Easily soluble in water; slightly soluble in DMSO and methanol (solubility increases with heating) Aqueous solutions are transparent. |
| Surfactant Properties | Excellent cleansing, foaming, emulsifying, and dispersing capabilities; strong calcium soap dispersion and hard water resistance. |
| Stability | Stable when stored in a cool, dark place; avoid high temperatures and environments with strong acids or alkalis. |
| Irritation | Low irritation; large molecules do not easily penetrate the skin’s cell membrane. |
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