Sodium octyl sulfate Chemical Properties

Melting point:

195 °C (dec.) (lit.)

Density 

1.04

vapor density 

8 (vs air)

vapor pressure 

0.31Pa at 20℃

Flash point:

93.3°C

storage temp. 

no restrictions.

solubility 

H2O: soluble20mg/mL

form 

Coarse Powder

color 

White

Odor

Characteristic odour

PH

6-8 (10g/l, H2O, 20℃)

Water Solubility 

soluble

λmax

λ: 210 nm Amax: 0.1
λ: 220 nm Amax: 0.06
λ: 230 nm Amax: 0.04
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02

BRN 

3658635

Stability:

Stable. Incompatible with oxidizing agents.

InChIKey

WFRKJMRGXGWHBM-UHFFFAOYSA-M

LogP

3.269 (est)

CAS DataBase Reference

142-31-4(CAS DataBase Reference)

EPA Substance Registry System

Sodium octyl sulfate (142-31-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-37/39

WGK Germany 

2

RTECS 

WT1175000

TSCA 

Yes

HS Code 

29209010

Toxicity

LD50 orally in Rabbit: 3200 mg/kg

MSDS

• Language:English Provider:Octyl sulfate sodium salt
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Sodium octyl sulfate Usage And Synthesis

Chemical Properties

white solid

Uses

Sodium octyl sulfate (SOS) may be used as an ion-pairing reagent:

• For the retention of catechols in reversed-phase high-performance liquid chromatography of catecholamines and their congeners.
• For the separation of asymmetric dimethylhydrazine (ADMH) and its decomposition products using ion-pair chromatography.

Uses

Wetting, dispersing, and emulsifying agent.

Uses

Sodium octyl sulfate has been used in a study to assess selective enrichment of albumin in biological samples. It has also been used in a study to investigate the behavior of mixed solution of a glycerin-modified cationic surfactant and an anionic surfactant.

Definition

Anionic deter- gent, available commercially as a 35% solution.

General Description

Sodium octyl sulfate is an anionic detergent and ion pairing reagent that is used in HPLC

Safety Profile

Poison by intraperitoneal route.Moderately toxic by ingestion. When heated todecomposition it emits toxic vapors of SOx.

Sodium octyl sulfate(142-31-4)Related Product Information

• Tetraoctylammonium bromide
• Sodium chloride
• Sodium sulfate
• Potassium heptadecafluoro-1-octanesulfonate
• Sodium methyl sulfate
• Sodium chlorite
• Ammonium sulfate
• Barium sulfate
• Aluminum sulfate
• Triton X-100
• Dimethyl sulfate
• Sodium acetate
• Magnesium sulfate heptahydrate
• Sodium bicarbonate
• TRI-N-OCTYLPHOSPHINE
• Sodium hydroxide
• Diclofenac sodium
• SULFATE STANDARD