Sodium dodecyl sulfate

Name: Sodium dodecyl sulfate
SKU: 0

CAS No.: 151-21-3
Molecular Formula: C12H25NaO4S
Molecular Weight: 289.39

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product description

Sodium dodecyl sulfater is an anionic surfactant with outstanding foaming, emulsifying, decontaminating and dispersing performance. It features high purity, stable quality and excellent hard water resistance. Widely used in personal care, detergents, industrial cleaning, emulsions and chemical synthesis as a foaming agent, emulsifier and detergent.

Chemical Properties

Property	Value
Melting point	204-207 °C (lit.)
Bulk density	490-560 kg/m³
Density	1.03 g/mL at 20 °C
FEMA	4437 \| SODIUM LAURYL SULFATE
Flash point	>100°C
Storage condition	2-8°C
Solubility	H₂O: 0.1 M, clear to nearly clear, colorless to slightly yellow
Form	Powder or crystals
Color	White to pale yellow
Odor	Slight fatty odor
pH value	6-9 (10 g/l, H₂O, 20°C)
pH range (indicator)	7.2
Biological source	Synthetic (organic)
Water solubility	ca. 150 g/L (20 °C)
Wavelength maximum (λ_max)	λ: 260 nm, Amax: 0.3 λ: 280 nm, Amax: 0.2
Merck	14,8636
BRN	3599286
Cosmetic ingredient function	CLEANSING SURFACTANT - CLEANSING DENATURANT FOAMING
InChI	15/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1
InChIKey	DBMJMQXJHONAFJ-UHFFFAOYSA-M
LogP	1.600
CAS database	151-21-3 (CAS DataBase Reference)
EPA chemical substance information	Sodium lauryl sulfate (151-21-3)
Absorption	≤0.1 at 280 nm in water at 30 mg/mL

Safety Information

Property	Value
Hazard symbols	F, Xn, Xi
Hazard class codes	36/37/38-36/38-22-11-21/22-42-41-20/21/22-37/38
Safety descriptions	26-36/37-36/37/39-36-22-39
UN dangerous goods number	UN 2926 4.1/PG 2
WGK Germany	2
RTECS number	WT1050000
F	3
TSCA	TSCA listed
Hazard class	4.1
Packing group	III
HS code	29209010
Storage class	11 - Combustible solids
Hazard class (category)	Acute toxicity, Category 4, Oral Hazardous to the aquatic environment — long-term hazard, Category 3 Serious eye damage, Category 1 Skin irritation, Category 2
Hazardous substances data	151-21-3 (Hazardous Substances Data)
Toxicity	LD50 orally in rats: 1288 mg/kg (Walker)

Product Usage:
SDS is a highly effective anionic surfactant and emulsifier, widely used across various industries:

Personal Care & Cosmetics: Shampoos, body washes, toothpaste, shaving creams, and bubble baths (as a primary foaming agent, degreaser, and emulsifier).

Household Cleaning: Laundry detergents, dishwashing liquids, all-purpose cleaners, and stain removers (for its excellent grease-cutting and foaming properties).

Industrial Applications: Emulsion polymerization (for producing latex, PVC, and acrylics), metal cleaning, textile processing (wetting and degreasing agent), and agricultural emulsifiers.

Laboratory & Biochemical Research: Cell lysis buffer, protein solubilization (e.g., in SDS-PAGE for protein separation), DNA extraction, and membrane protein studies.

Pharmaceuticals: As an excipient in tablet coatings and liquid formulations to enhance solubility and absorption.

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Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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