SDS/SLS is an anionic surfactant with excellent performance and extremely wide applications. It is one of the key ingredients in many cleaning and personal care products in our daily lives that produce rich foam and effective cleaning. In the field of scientific research, especially in protein electrophoresis (SDS-PAGE), it plays an indispensable role. Its strong surface activity also makes it applicable in multiple industrial sectors.

Basic Introduction

CAS Registry Number: 151-21-3

EINECS Registry Number: 205-788-1

HS Code: 3402390000

Molecular Formula: C₁₂H₂₅NaO₄S

Molecular Weight: 288.38

Synonyms: Foaming powder; K12; SDS; Sodium dodecyl sulfate; SODIUM LAURYL SULFATE; SLS.

Application Fields

1. Daily Use Field: As a surfactant, used in cleaning products such as shampoo, body wash, hand sanitizer, etc., to produce foam and clean skin and hair.

2. Medical Field: Used in the preparation of oral cleansers, medicinal solutions, and other products.

3. Chemical Industry: Used in the synthesis of other surfactants, emulsifiers, and other chemical products.

4. Food Field: Can be used as a food additive, thickener, for preparing foamed foods.

Packaging Method

Composite paper bag

Stability and Storage Conditions

Keep container sealed, avoid direct sunlight, store in a cool, dry place to prevent the generation of harmful substances, avoid contact with strong acids, strong bases, and other incompatible substances.

Product Compliance

Indicator Range:QB/T 2900

Appearance (25°C): White to slightly yellow powder/ White to slightly yellow needle-like/ White to slightly yellow transparent liquid

Active content, %: Powder: ≥92/ Needle-like: ≥90/ Liquid: ≥28

Moisture, %:  Powder ≤3.0/ Needle-like ≤5.0

pH value (1% aqueous solution): Powder, Needle-like 6.5-10.5/ Liquid: 7.5-10.5

Sodium chloride content, %: Powder, Needle-like ≤2.5/ Liquid ≤1.0

Petroleum ether soluble content, %: ≤1.5

Foaming capacity, mm: ≥135

Color, HAZEN liquid: ≤25

Indicator Range:GB/T 15963

Appearance (25°C): White to slightly yellow powder/ White to slightly yellow needle-like/ White to slightly yellow transparent liquid

Active content, %: Powder: ≥94/ Needle-like: ≥92/ Liquid: Indicator value ?1

Moisture, %: Powder ≤3.0/ Needle-like ≤5.0/ Liquid powder ≤5.0

pH value (1% aqueous solution): 7.5-12.5 (1.5% aqueous solution)

Whiteness, WG: Powder: ≥80

Sodium chloride content, %: Powder, Needle-like ≤0.5/ Liquid ≤0.3

Petroleum ether soluble content, %: Powder, Needle-like ≤1.0/ Liquid ≤1.5

Indicator Range:CP/BP/EP

Appearance (25°C): White or pale yellow powder or crystals, with a characteristic slight odor

Active content, %: ≥85

Inorganic salts (Na2SO4+NaCl), %: ≤8.0

Free alkali, %: ≤0.5

Heavy metal content (Pb), mg/kg: ≤20