Metabisolfito di sodio AGR, 1 kg

Sodio metabisolfito AGR
Na2S2O5
disolfito di sodio
M.W: 190.11 CAS: 7681-57-4 EC: 231-673-0 TARIC: 28321000
EC INDEX: 016-063-00-2

Appearance ≤ White crystalline powder
Assay ≥ 97%
Substances insoluble in water (H2O) ≤ 0.005%
Chloride (Cl–) ≤ 0.005%
Arsenic (As) ≤ 0.0001%
Phosphate (PO4) ≤ 0.002%
Thiosulphates (S2O3) ≤ 0.05%
Heavy metals (Pb) ≤ 0.001%
Iron (Fe) ≤ 0.002%