Sodium Thiosulphate 5-Water

Assay: >99.0%
MF: Na2S2O3•5H2O
MW: 248.19 g/mol
MP: 48°C
Transmission: > 85%
pH 10% m/m at 25˚C: 6.5—9.0
Crystal size 0.00-3.15 (%mm): >75
Sulphite as Na2SO3•5H2O (%m/m): < 5%
Sodium Sulphide: < 0.002 %w/w
Iron: < 0.0005 %w/w
Heavy metals as Pb: < 0.001 %w/w
Alkali earths as Ca: < 0.2 %m/m

Cas Number: 10102-17-7

Einecs Number: 231-867-5

HS Code / Commodity Code: 2832300000

Hazard Phrases: H0001