Shampoo raw material SLS92%

                                                                          Sodium Sulfate In Shampoo

Sodium Sulfate In Shampoo Of Product Description:

1. Chemical Profile

IUPAC Name: Sodium dodecyl sulfate

CAS No.: 151-21-3

Formula: CH₃(CH₂)₁₁OSO₃Na

Molecular Weight: 288.38 g/mol

Structure: A 12-carbon alkyl chain linked to a sulfate group, neutralized by sodium.

2. Key Physical & Chemical Properties

Property Specification

Appearance White crystalline powder or clear liquid (aqueous solutions)

Melting Point 204–207°C (decomposes)

Solubility Highly soluble in water (~150 g/L at 20°C), partially soluble in ethanol

Critical Micelle Concentration (CMC) ~8.2 mM (25°C in water)

Density 1.01 g/cm³ (20°C, 10% aqueous solution)

Foaming Capacity Generates stable, voluminous foam in aqueous solutions

3. Industrial & Commercial Applications

3.1 Personal Care & Cosmetics

Primary Function: Surfactant, emulsifier, and foaming agent.

Toothpaste: 0.5–2.0% w/w to disperse plaque and enhance cleaning.

Shampoos/Body Wash: 10–25% in formulations for oil removal and lather formation.

Emulsion Stabilization: Used in creams/lotions at 0.5–5% to prevent phase separation.

3.2 Pharmaceuticals

Tablet Disintegration: 0.1–2.0% in oral solid dosages to improve dissolution.

Topical Preparations: Emulsifier in ointments (≤1%) for drug delivery.

Regulatory Compliance: Must meet USP-NF, Ph. Eur., or JP standards for purity (<0.1% dioxane).

3.3 Industrial Uses

Metal Cleaning: Alkaline degreasers with 5–15% SLS for machinery/auto parts.

Textile Processing: Wetting agent in dye baths (0.1–1.0% concentration).

Firefighting Foams: Component of AFFF (aqueous film-forming foam) for hydrocarbon fires.

3.4 Biotechnology

Protein Denaturation: Key reagent in SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis) to linearize proteins.

4. Technical Specifications by Grade

Parameter Cosmetic Grade Pharmaceutical Grade Industrial Grade

Purity (Assay)   ≥92%   ≥99.5%   ≥85%

Sulfated Ash   ≤2.0%   ≤0.5%   ≤3.0%

Heavy Metals (as Pb) ≤20 ppm ≤10 ppm ≤50 ppm

Free Fatty Alcohols ≤1.5% ≤0.5% ≤2.5%

Residual Sodium Chloride ≤3.0% ≤1.0% ≤5.0%

Microbial Limits Not specified Total aerobic count ≤100 CFU/g Not specified

Specification: