Sodium metabisulfite
Test items Refined High-purity grade Food-grade Industrial-grade
Sodium metabisulfite % ≥ 98.5 98 97.5 97.0
Iron Fe % ≤ 0.0005 0.001 0.0015 0.002
Water insoluble matter % ≤ 0.005 0.01 0.02
Arsenic As % ≤ 0.00005 0.0001 0.0001 0.0001
Definition Clarification Clarification Clarification
Lead Pb % ≤ 0.00005 0.0005 0.0002
NaCl % ≤ 0.012
pH value ≤ 4.0-4.6
Packaging: 25kg、50kg、1000kg Weaving.
Send product request
Other supplier products
Potassium cyanide | Test items Index Shape Lump Potassium cyanide (KCN) % ≥99.0 Potassium hydroxide(KOH) % ≤0.3 Potassium carbonate(K2CO3)% ≤0.4 Potassi... | |
Potassium dichromate | Item Index Potassium dichromate (K2Cr2o7) % ≥ 99.7 Chlorides (Cl)% ≤ 0.05 Insoluble ≤ 0.02 Sulfates ( SO4-2) % ≤ 0.02 Na+ % ≤ 0... | |
Sodium Carbonate | Indicator name Industrial-grade Food grade Total alkali content(Na2CO3)% ≥ 99.2 99.2 Sodium chloride(NaCl)% ≤ 0.7 0.7 Iron(Fe)% ≤ 0.003... | |
Hydrogen fluoride | HF:≥99.95%; H2O:≤0.03%; SO2:≤0.007%; H2SO4:≤0.005%; H2SiF6:≤0.010%. | |
Dimethylamine | Appearance: colorless transparent liquid. Dimethylamine ≥ 99.8%; Monomethylamine ≤ 0.10%; Trimethylamine ≤ 0.05%; Ammonia ≤ 0.03%; |