Sodium Thiosulfate

Synonym(s)

: Disodium thiosulfate

Mol. Formula

: Na2S2O3

EC / List no.

: 231-867-5

CAS no.

: 7772-98-7

Molecular weight

: 158,11

Sodium thiosulfate is an inorganic sodium salt consisting of sodium and thiosulfate ions in a 2:1 ratio. It has the role of antidote, nephroprotective agent and antifungal drug against cyanide poisoning. Contains a thiosulfate (2-).

Application

» This substance is used in the following products: fillers, putties, plasters, modeling clay and photo chemicals.
» Used in machine wash liquids/detergents, automotive care products, paints, coatings or adhesives, fragrances and air fresheners, metal, wood and plastic building and building materials.

Product Specifications

Physical and Chemical Properties
» Sodium thiosulfate appears in colorless crystalline powder form.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	48.5
Density	g/ cm³	1.69	20 °C
Solubility	g/L	764	25 °C, soluble with water
LogP		-4.35
Refractive index		1.489