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Inorganic Salts

Sodium thiosulphate pentahydrate AR

RA006340 CAS 10102-17-7 AR

Identity

Product code
RA006340
CAS number
10102-17-7
Grade
AR
Assay (specification)
Min 99.5 %
Molecular formula
Na2S2O3.5H2O
Molecular weight
248.18

Classification

Technical Data

Properties

PropertyValue
Physical state Reference value Solid (20 °C)
Odour Reference value Odorless

Reference values are general physical properties of the substance taken from published data. They are not specifications of this product.

Specifications

ParameterSpecificationUnit
APPEARANCE Colourless crystals. —
APPEARANCE OF SOLUTION Passes Test —
ASSAY Min 99.5 % %
pH (5 % aqueous solution) 5.5 - 7.5 —
IDENTIFICATION Passes Test —
INSOLUBLE MATTER Max 0.003 % %
CHLORIDE (Cl) Max 0.02 % %
HEAVY METALS (as Pb) Max 0.0005 % %
IRON(Fe) Max 0.0005 % %
NITROGEN COMPOUNDS (N) Max 0.01 % %
SULPHIDE (S) Max 0.0002 % %
SULPHATE & SULPHITE(as SO4) Max 0.05 % %
COPPER (Cu) Max 0.0005 % %

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

Packaging

Pack size SKU
500 g RA006340-PK-500G