Information
Specification category:
Product No. | Product name | specifications |
1.01774.010 | Chromium potassium sulfate dodecahydrate | AR500g |
1.01774.020 | Chromium potassium sulfate dodecahydrate | CP500g |
1.01774.030 | Chromium potassium sulfate dodecahydrate | AR25kg |
1.01774.040 | Chromium potassium sulfate dodecahydrate | CP25kg |
1.01774.040 | Chromium potassium sulfate dodecahydrate | CP25kg |
Characteristic:
Appearance and properties: Deep violet,odorless solid.
pH value: 3(50g/L H2O,20℃)
Relative density: 1.83(water=1)(20℃)
Melting point(℃): 89
Concentration: Pure
Solubility: Soluble in water (4eq. cold water or 2eq. hot water) and dilute acid,insoluble in alcohol.
Technical indicators:
Item | AR | CP |
Assay[KCr(SO4)·12H2O] | ≥99.5% | ≥99.0% |
Insoluble matter in water | ≤0.005% | ≤0.01% |
Chloride(Cl) | ≤0.002% | ≤0.005% |
Ammonium salt(NH4) | ≤0.01% | ≤0.03% |
Aluminum(Al) | ≤0.02% | ≤0.05% |
Iron(Fe) | ≤0.005% | ≤0.02% |
Heavy metals(as Pb) | ≤0.002% | ≤0.01% |