SODIUM THIOSULPHATE PENTAHYDRATE Extra Pure

Confirming to BP,USP.
Sodium hyposulfite pentahydrate

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Article No.
06049
Grade
Extra Pure
Purity
99%
CAS No.
10102-17-7
Molecular Formula
Na2S2O3.5H2O
Molecular Weight
248.17
H.S. Code
2832.3010
Shelf Life
60 Months
MSDS
 

 

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

Packings

  • 1PW1200500

    500 g (00500)

  • 1PW1201000

    1000 g (01000)

  • 1PW1206500

    5000 g (05000)

  • 1PDL00040K

    25 Kg (0025K)

  • 1PDLP0065K

    50 Kg (0050K)

 

Specifications

Appearance Large, colourless crystals or coarse crystalline powder
Assay (iodometric) 99-100.5%
Identity Passes test
Appearance of solution Passes test
pH (5% solution in water) 6.0 - 8.4
Chloride (Cl) Max 0.05%
Sulphate and Sulphite (as SO4) Max 0.2%
Sulphide (S) Passes test
Heavy metal (as Pb) Max 0.001%
Calcium (Ca) Passes test
Water (H2O) 32.0 - 37.0%

Revision Date : 11-Mar-2016
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