English 
T: +86-13780319169
Fu Yang North Road, Yun He District, Cang Zhou City, Hebei Province, China.
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Product Parameters
| Test Iterms | Specification | Test Result |
| Purity(As Na2S2O5) ; %≥ | 97% | 97.3 |
| Iron(As Fe); % ≤ | 0.003 | 0.002 |
| Arseni c; mg/kg ≤ | 5.0 | <5.0 |
| Heavy Metal(As Pb); mg/kg ≤ | 1.0 | <1.0 |
| Water insoluble matter | 0.05 | 0.02 |
Industry Grade
1.Mordant:printing anddyeing industry
2.Bleaching Agent: waste water/textile/paper pulp/bamboo/timber
3.Rubber solidifying agent
4.Hydrocarbon perfume aldehyde: perfume industry
Food Grade
1.Bleaching agent (e.g. candies, cake, bamboo shoots)
2.Loosening agent (e.g. bread, cracker)
3.Antiseptic and germicide (e.g. fruit juice, tinned food brews, the cereals food)
4.Inhibitor and freshen agent (e.g. day lily, seafood, fruitand vegetable)
