SODIUM THIO SULPHATE

HS Code 28323010

Chemical formula: Na2S2O3

Other Name: Sodium thiosulphate, Sodium hyposulfSte, Hyposulphite of soda

Description

Sodium thiosulfate (sodium thiosulphate) is a chemical and medication. As a medication it is used to treat cyanide poisoning and pityriasis versicolor.

It is an inorganic compound with the formula Na2S2O3.xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O3·5H2O. The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water. It is also called sodium hyposulfite or "hypo".

It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.

Properties

Formula: Na2S2O3
Molar mass: 158.11 g/mol
IUPAC ID: Sodium thiosulfate
Melting point: 48.3 °C
Density: 1.67 g/cm³
Soluble in: Water

Uses

Medical uses

Iodometry

Photographic processing

Gold extraction

Neutralizing chlorinated water