PhenylhydrazinePhenyl hydrazine HydrochlorideAmmonium Bisulfite SolutionPotassium Bisulfite Solution1-phenyl-3-Hydroxy-1,2,4Triazole P-BenzoquinonePhenyl hydrazine sulphateCarvedilolEdaravoneAmmonium thiosulfate solutionCalcium thiosulfate solutionPotassium thiosulfate solutionMagnesium thiosulfate solutionSodium thiosulfate (baking soda)Potassium sulfite solution
CAS NO.:7772-98-7
Molecular formula: Na2S2O3 · 5H2O
Molecular weight: 248.17
Physical and chemical properties: monoclinic crystal, melting point: 40-45 ℃, relative density: 1.729 (17 ℃).
Uses: Used in industries such as photographic fixing agent, electroplating, leather, reducing agent, bleaching dechlorination agent, sulfur dye, whitening agent, disinfectant and fading agent
Packing: 25kg, 50kg plastic woven bag packaging, also can be customized according to customer requirements.
Structural formula:
Product specifications:
| item | Photographic | Industrial grade | Anhydrous |
| appearance | Colorless transparent crystal | Colorless transparent crystal | White powder |
| content≥% | 99.00 | 98.5 | 97.0 |
| Water insoluble matter≤% | 0.01 | 0.03 | 0.03 |
| Sulfide≤% | 0.001 | 0.003 | 0.001 |
| iron≤% | 0.001 | 0.003 | 0.005 |
| PH（20℃） | 6.5~9.5 | 6.5~9.5 | 6.5~9.5 |
| Aqueous reaction | Compliance test | Compliance test | -- |
| Granularity (grain / g) | 12~16 | -- | -- |