A200388 | Sodium Thiosulphate Anhydrous ANALYTIC

CAS Number

7772-98-7

Formula

Na2S2O3

Weight

M: 158,13 EC: 231-867-5 NC: 2842 90 80

Specifications
Minimum assay (Iodom.) 99,0 %
pH of 5% solution 6,0-8,4
MAX. IMPURITIES
Insoluble matter in H2O 0,01 %
Loss on drying at 105°C 1 %
Chloride (Cl) 0,05 %
Sulphate and Sulphite (as SO4) 0,5 %
Sulphide (S) 0,0005 %
Ca 0,004 %
Cd 0,001 %
Co 0,001 %
Cu 0,001 %
Fe 0,001 %
K 0,01 %
Ni 0,001 %
Pb 0,001 %
Zn 0,001 %

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