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CAS 822-00-6 Sodium stearate
Overview
Sodium stearate (sodium octadecanoate; CAS 822-16-2; C₁₈H₃₅O₂Na, 306.46 g/mol) is an anionic fatty-acid soap used as an emulsifier, wetting/thickening and gelling/structuring agent in bar soaps, facial cleansers, creams/lotions, and alcohol–water gels for stick deodorants. It also serves as a lubricant/mold-release and pigment dispersant in rubber, plastics, coatings, paper, and textiles.
Product Description
CAS 822-00-6 Sodium stearate
Product Characteristics — Sodium Stearate (CAS 822-16-2): An anionic fatty-acid soap functioning as an emulsifier, thickener/structurant, wetting agent, and gellant for bar soaps, creams/lotions, and alcohol–water gel sticks; forms crystalline networks in alcohol–water to build firm gels and boosts viscosity/stability in O/W emulsions; readily soluble in hot water and alcohol–water, limited in cold water, insoluble in non-polar solvents;
Sodium Stearate — Product Specification
CAS: 822-16-2 | Formula: C18H35O2Na | Molecular weight: 306.46 g/mol | Synonyms: Sodium octadecanoate; Soap base
Identity & Form
| Product form | White flakes / powder / pastilles |
|---|---|
| Solubility | Soluble in hot water and alcohol–water; limited in cold water; insoluble in non-polar solvents |
| Function | Emulsifier, thickener/structurant, wetting agent, gellant; lubricant/mold-release; pigment dispersant |
| Documents | COA · TDS · SDS |
Typical Specification (example)
| Assay (as sodium stearate) | ≥ 98.0% (titration) |
|---|---|
| Free fatty acid (as stearic acid) | ≤ 1.0% (w/w) |
| Free alkali (as NaOH) | ≤ 0.50% (w/w) |
| Moisture / Loss on drying | ≤ 5.0% (105 °C) |
| Matter insoluble in ethanol | ≤ 1.0% (w/w) |
| Chloride (as NaCl) | ≤ 0.50% (w/w) |
| Heavy metals (as Pb) | ≤ 10 ppm |
| pH (1% aq., 25 °C) | 8.5 – 10.5 |
| Appearance | White, free-flowing; no visible foreign matter |
Applications & Handling
| Main uses | Bar soaps, facial cleansers, creams/lotions; alcohol–water gel sticks (deodorants); lubricant/mold-release; pigment dispersant in rubber/plastics/coatings/paper |
|---|---|
| Handling | Best performance at alkaline pH; avoid cationic surfactants; hard-water ions (Ca2+/Mg2+) may precipitate—use chelators if needed; treat dust as irritant |
| Storage | Keep tightly closed, cool and dry; protect from acids and oxidizers |
Packaging & Logistics
| Packaging | 20–25 kg bags / fiber drums; larger bulk on request |
|---|---|
| Ports | Qingdao · Shanghai · Tianjin |
| To quote (please specify) | Required grade/spec, pack size, destination country/port, and documents |
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PACKING AND DELIVERY
Packing and delivery
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