Na2S2O3.5H2O MW 248.18 CAS [10102-17-7]
Assay >99.5%
pH (5% aqueous) 6.0-8.5
Chloride <0.01%
Sulphate and Sulphite <0.1%
Sulphide <0.001%
Heavy metals as Pb <0.001%
Efflorescent in warm dry air and slighly deliquescent in moist air.
500g A7933P
1KG A7933M
2½KG A7933L