Пиросернистокислый натрий
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.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Смола-специфической адсорбции золота | Indicator Parameter Functional group -N+(CH3) 2H2O Appearance Milky white opaque sphere Finished form CLˉ Moisture content % 45-55 Weigh... |
 |
Карбонат натрия | Indicator name Industrial-grade Food grade Total alkali content（Na2CO3）% ≥ 99.2 99.2 Sodium chloride（NaCl）% ≤ 0.7 0.7 Iron（Fe）% ≤ 0.00... |
 |
Диметиламин | Appearance: colorless transparent liquid. Dimethylamine ≥ 99.8%; Monomethylamine ≤ 0.10%; Trimethylamine ≤ 0.05%; Ammonia ≤ 0.03%; Purposes: m... |
 |
Метиленхлористый | Test items Index Methylene Chloride % ≥99.95 Water % ≤0.01 Acid (HCl) % ≤0.0004 Chromaticity Hazen Unit（Pt-Co Color） ≤10 Residue a... |
 |
2,4-Толуилендиизоцианат | Test items Index Isocyanate ％ ≥99.0 Saponifiable chlorine ％ ≤0.01 Chlorine ％ ≤0.04 Crystallizing point℃ ％ 5.0-6.5 Chromaticity （Hazen... |
