Sodio solfato anidro pentaidrato, 500 g

Sodio tiosolfato pentaidrato AGR
Na2S2O3·5H2O
M.W: 248,21 CAS: 10102-17-7 EC: 231-867-5 TARIC: 28323000
P: P102-P202

Appearance ≤ Large, colourless crystals or coarse crystalline powder
Assay 99.5 – 101%
Insoluble matter (10% in water) ≤ 0.005%
pH (5% solution in water) 6.0 – 8.4
Nitrogen (N) compounds ≤ 0.002%
Chloride (Cl–) ≤ 0.02%
Heavy metal (as Pb) ≤ 0.001%
Sulfates and Sulfites (SO4) ≤ 0.1%
Sulphide (S) ≤ Passes test