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Inorganic Salts

Sodium Thiosulphate Anhydrous Extra Pure

RA002468 CAS 7772-98-7 Extra Pure

Identity

Product code
RA002468
CAS number
7772-98-7
Grade
Extra Pure
Purity
97%
Molecular formula
Na2S2O3
Molecular weight
158.10

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White —
Odour Odourless —
pH value 6.0 - 8.5 —
Melting point/ Freezing point [°C] 52 °C °C
Density [g/cm3] 1.66 g/cm3 g/cm3

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit
Appearance White crystalline powder —
Assay Min 97 % %
pH 6.0 - 8.5 —
Sulphide (S) Max 0.002 % %

2 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
1 kg RA002468-PK-1KG