Sodium Methyl Ester Sulfonate (MES) CAS#: 93348-22-2
Excellent Detergency & Hard Water Resistance Capacity: White or off-white powder / pale yellow flake / liquid, derived from natural fatty acid methyl ester by sulfonation and neutralization. It features outstanding washing performance, strong calcium soap dispersing ability, stable performance in hard water, low irritation and superior biodegradability.
Good Compatibility & Low Foam Property: Chemically stable under normal temperature, compatible with most surfactants, enzymes and detergent additives; available in different active content grades for detergent, industrial cleaning and textile scenarios.
Stable Powder Form for Convenient Transport: Uniform powder/flake form, stable under sealed storage, easy to weigh, transport and automatic feeding.
Sodium Methyl Ester Sulfonate (MES) is a high-demand eco-friendly surfactant raw material, biodegradable, low irritation and covers a wide range of industrial application scenarios.
Chemical & Physical Properties
| Property | Value |
|---|---|
| Melting point | Decomposes upon heating |
| Density | ~0.7–1.0 g/cm³ |
| Storage temp | Sealed dry cool warehouse, strictly isolated from strong oxidants |
| Solubility | Easily soluble in water, insoluble in mineral oil |
| Form | Powder / flake / liquid |
| Color | White to pale yellow |
| Odor | Slight characteristic odor |
| PH Value | 5.0–7.5 (1% aqueous suspension, grade dependent) |
| Hygroscopicity | Slightly hygroscopic |
| Stability | Stable in airtight packaging; decomposes at high temperature |
| EINECS No. | 297-406-8 |
| CAS DataBase Reference | 93348-22-2 |
Safety Information
| Item | Value |
|---|---|
| Hazard Codes | Not applicable |
| Risk Statements | R36 |
| Safety Statements | S22; S24/25 |
| UN Number | Not regulated |
| Hazard Class | Not dangerous goods |
| Packing Group | Not applicable |
| Flammability | Non-flammable |
| HS Code | 34021100 |
Main applications: Detergent raw material for laundry powder, liquid detergent, dishwashing liquid, textile soaping agent, degreasing agent, industrial cleaning agent, pesticide emulsifier, pigment dispersant, soap base modifier.
