焦亚硫酸钠
详细说明
Sodium Metabisulphite
CAS No.: 7681-57-4
Formula: Na2S2O5
M.W.: 190.10
Appearance: White or slight yellow powder
Specifications: 97% min
Na2S2O5: 97.0% min
Water Insoluble: 0.05% max
Fe: 0.003% max
Arsenic: 0.0001% max
SO2: 65.0% min
Heavy Metal (as Pb): 0.0005% max
PH: 4.0-4.8
Package: in 25kg bag
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