Ammonium sulfate
Test items Index
Exterior White crystalline
Nitrogen % ≥ 21
Water (H2O) % ≤ 0.2
free carbonic acid (H2SO4)% ≤ 0.03
Iron (Fe) % ≤ 0.007
Arsenic(As) % ≤ 0.00005
Heavy metal (pb) % ≤ 0.005
Water insoluble matter % ≤ 0.01
Packaging: 25kg、50kg、1000kg Weaving.
Other supplier products
|
|
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... |
|
|
Arsenic trioxide |
Main content Other impurities
Arsenic trioxide Iron Lead Chlorine Chromium Cadmium Water
As2O3 Fe Pb Cl Cr Cd H2O
≥ ≤ ≤ ≤ ≤ ≤... |
|
|
Dimethylamine |
Appearance: colorless transparent liquid.
Dimethylamine ≥ 99.8%;
Monomethylamine ≤ 0.10%;
Trimethylamine ≤ 0.05%;
Ammonia ≤ 0.03%; |
|
|
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... |
All supplier products
Same products