
Disodium Laureth Sulfosuccinate (CAS 68585-34-0), with the molecular formula C₁₆H₂₉Na₂O₁₀S, is a pale yellow, transparent liquid; it is stable at room temperature, readily soluble in water, exhibits surfactant properties, and is weakly acidic. It is primarily used as a surfactant, emulsifier, detergent, and additive in personal care and industrial applications.
| Item | Specification |
| Melting Point | N/A |
| Boiling Point | N/A |
| Density | 1.07–1.08 g/cm³ (25°C, 40% active ingredient) |
| Flash point | >100°C |
| Surface tension | 32–34 mN/m (0.1% aqueous solution, 25°C) |
| CMC | 8.2 mM (25°C) |
| Surface Tension | Surface tension of a 0.1% aqueous solution is approximately 30 mN/m |
| Foaming capacity | Roe foam meter: ≥180 mm (0.1% aqueous solution, 25°C) |
| LSDP | ≥30% |
| Solubility | Miscible with water, ethanol, propylene glycol, etc.; insoluble in mineral oil. |
| Stability | Stable for 12 months at 25°C; stable within a pH range of 4–8 |
Personal Care: Disodium Laureth Sulfosuccinate is used as a detergent, foaming agent, and mild surfactant in personal care and facial cleansing products
Industrial Applications: Disodium Laureth Sulfosuccinate is used as an emulsifier and dispersant in coatings, textiles, and leather processing
Other Applications: Agricultural adjuvants and emulsifiers for emulsion polymerization
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