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.
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Cupric sulfate |
Test items Superior grade Feed-grade
Cupric sulfate(CuSO4.5H2O) % ≥ 98 98.5
Acidity (H2SO4) % ≤ 0.2 0.2
Water insoluble matter % ≤ 0.2 ... |
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Aluminum Tripolyphosphate |
Model APW-1 APW-2 ATP
Phosphorus pentoxide(%) ≥ 42.5-46.5 35.0-40.0 64-68
Aluminum oxide(%) ≤ 11.0-15.0 9.5-13.5 13-17
Silica(%) ≤ 13.5... |
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Causiu Soda flakes |
Item Index
Causiu Soda flakes(NaOH)% ≥ 99
Sodium carbonate(NaCO3)% ≤ 0.5
Sodium chloride(NaCl)% ≤ 0.03
Ferric oxide(Fe2O3)% ≤ 0.005... |
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Ammonium sulfate |
Test items Index
Exterior White crystalline
Nitrogen % ≥ 21
Water (H2O) % ≤ 0.2
free carbonic acid (H2SO4)% ≤ 0.03
Iron (Fe) % ≤ 0... |
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Anhydrous Sodium Sulfite |
Test items Food-grade High-purity grade Industrial-grade
Sodium sulfite (Na2SO3) % ≥ 97 98 97
Iron Fe % ≤ 0.001 0.001 0.003
Free Alkali (N... |
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