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 Products
Chromium(III) Oxide
CAS No.: 1308-38-9 EINECS
No.:215-160-9
Beilstein MDL:MFCD00010949
Molecular formula:Cr2O3 Molecular weight:152.02
Synonyms:chromic oxide;chrome green;chromium sesquioxide; Pigment Green
Chemical property:Hexagonal system or amorphous dark green powder. A metallic luster. Insoluble in water, Hardly soluble in acid, soluble in hot alkali bromate solution.
Quality standard
| Item |
Chemical reagent |
Europe's reagent |
company standard |
| (AR) |
(CP) |
(AR) |
(reality) |
| Assay(Cr2O3),% ≥ |
99.0 |
98.5 |
99 |
99.0 |
| Iron(Fe),% ≤ |
0.03 |
0.05 |
|
0.03 |
| Chromic anhydride(CrO3),% ≤ |
0.005 |
0.05 |
|
0.005 |
| Soluble,% ≤ |
0.1 |
0.3 |
0.3 |
0.1 |
| Chloride(Cl),% ≤ |
0.005 |
0.01 |
0.01 |
0.005 |
| Sulfate(SO4),% ≤ |
0.01 |
0.05 |
0.01 |
0.01 |
| (Al),% ≤ |
|
|
|
0.005 |
| (Ca),% ≤ |
|
|
|
0.02 |
| (Cu),% ≤ |
|
|
|
0.002 |
| (Fe),% ≤ |
|
|
|
0.02 |
| (Pb),% ≤ |
|
|
|
0.01 |
| (Mg),% ≤ |
|
|
|
0.01 |
| (K),% ≤ |
|
|
|
0.03 |
| (Na),% ≤ |
|
|
|
0.3 |
| granularity(≤ 40µm) |
|
|
|
≥95 |
99.95% metals basis:
Appearance Green Powder
X-Ray Diffraction Conforms to Structure
Purity ≥99.95% Based on Trace Metals Impurities
ICP Major Analysis Confirms Chromium component
Total metallic impurities ≤500ppm by ICP Atomic emission
(Al,Sb,As,Ba,Be,Bi,B,Cd,Ca,Co,Cu,Ga,Ge,Hf,In,Fe,La,Pb,Li,Mg,Mn,Mo,Ni,K,Rb,Sc,Se,Ag,Na,Sr,Ta,Te,Tl,Th,Sn,Ti,W,U,V,Y,Zn,Zr)
Uses: mainly used for smelting metal chromium and chromium carbide. Used for enamel and ceramic glaze. Artificial leather, building material stain. Used in the manufacture of fast coating, abrasive material, green polishing paste printing money and special ink. Used for organic synthesis catalyst. Is advanced green pigment. They are also used as catalyst, analytical reagent.
Packing: 25 kg/bag, plastic woven bag in outside. Export: 25 kg/cardboard barrels or according to customer requirement.
Storage: seal preservation.
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