SODIUM THIOSULPHATE PENTAHYDRATE
SODIUM THIOSULPHATE PENTAHYDRATE AR/ACS
Short Name: SODIUM THIOSULPHATE PENTAHYDRATE
Synonym: Sodium hyposulfite pentahydrate
Basic Details
Article No.
LG4297
Grade
AR/ACS
Purity
99.5%
CAS No.
10102-17-7
HS Code
2832.3010
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Colorless crystals
Odour
Odorless
pH value
6 - 8.5
Melting point/ Freezing point [°C]
48°C
Boiling point [°C]
> 100°C
Density [g/cm3]
1.75
Solubility in water [% weight]
79g/100 ml water @ 40C
Chemical Specifications
Appearance
Large, colourless crystals or coarse crystalline powder
Assay (iodometric)
99.5 - 101.0%
Insoluble matter (10% in water)
Max. 0.005%
pH (5% solution in water; 25°C)
6.0 - 8.4
Nitrogen compounds (as N)
Max. 0.002%
Chloride (Cl)
Max. 0.02%
Heavy metal (as Pb)
Max. 0.001%
Sulphate and Sulphite (as SO4)
Max. 0.1%
Sulphide (S)
Passes test
Safety Information & Hazard Symbols