Synonyms: chrome powder, basic chromium sulphate
CAS NO.:12336-95-7
Molecular formula: Cr(OH)SO4.nH2O
Appearance: Amorphous dark green powder
Purity: Cr2O3 22%, Cr2O3 25%
| Items | Quality Standard (HG/T2678-2007) | |
| Appearance | Green Powder | Green Powder |
| Cr2O3 Content | 22%± 1% | 25%± 1% |
| Basicity | 33%± 2% | 33%± 1% |
| Water Insoluble | 0.1%max | 0.1%max |
| Fe | 0.1%max | 0.06%max |
| 10% solution PH value | 2.0~3.0 | 2.0~3.0 |
Physicochemical properties: Quickly soluble in water, excellent solubility, high active ingredients in tanning, strong hygroscopicity.
Applications: Mainly used for leather tanning. It is the raw material of chromium hydroxide. In dye industry, it is used for the production of reactive black dyes. In the printing industry it is used as a mordant.
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