Overview of Chromium Oxide Cr2O3 Powder：
Chromium oxide is an inorganic substance. The chemical formula of chromium oxide is Cr2O3. It is a light green to dark green fine hexagonal crystal. It turns brown when it's hot and green when it's cold.
Cr2O3 is found in the chromium-rich tremolite skarn, postquartz, and chlorite veins in the form of the natural mineral escolite. Eskolaite is also a rare component of chondrites.
Cr2O3 has a corundum structure consisting of hexagonally arranged oxide anions, in which 2/3 of the octahedral pores are occupied by chromium. Similar to corundum, Cr2O3 is a hard and brittle material (Mohs hardness 8-8.5).
Chromium oxide dissolves in hot alkali metal bromate solution. Soluble in heated potassium bromate solution, slightly soluble in acid and alkali, almost insoluble in water, ethanol, acetone, acid and alkali. and annoying. It is extremely stable to light, atmosphere, high temperature and corrosive gases such as sulfur dioxide and hydrogen sulfide. It has high coverage.
Application of Chromium Oxide Cr2O3 Powder：
1. Lead chrome green is the main coloring pigment in the paint industry, and most green paints are formulated with this pigment. In addition, it is used in paints and plastics. Its application range is very similar to that of lead chrome yellow. Due to the presence of chrome yellow in the ingredients, attention should be paid to the toxicity of lead in its application. Lead chrome green contains iron blue and oxidant lead chromate, so when the dust encounters sparks, there is a possibility of spontaneous combustion, so be careful when drying and crushing. After burning, lead chrome green completely loses the characteristics of green pigment and turns into a dark brown-yellow substance. In addition, in the production of nitro paint, the rolling process is not directly rolled with lead chrome green,
2. Used in metallurgy, ceramics, chromium oxide refractories, pigment industrial raw materials and organic synthesis catalysts.
3. Used as analytical reagent and catalyst.
4. It is used as a coloring, wear-resistant and corrosion-resistant filler for adhesives and sealants. It can also be used as a colorant for enamel, ceramics, artificial leather and building materials, a catalyst for organic chemical synthesis, a lightfast coating and a special ink for printing money.
5. It is used as a colorant for cosmetics, mainly for eye cosmetics, but not for oral and lip cosmetics, and is not recommended for facial cosmetics and nail polish.
6. Chromium oxide is one of the main components of silver-plating bright liquid. The newly prepared chromium trioxide is an important raw material for the preparation of chromium fluoride and chromium bromide.
Chromium Oxide Cr2O3 Powder Price：
The price of chromium oxide Cr2O3 powder will vary randomly with the production cost of chromium oxide Cr2O3 powder, transportation cost, international situation, exchange rate, market supply and demand and other factors. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, inexpensive nanomaterials and chemicals by providing turnkey custom manufacturing services. If you are looking for Chromium Oxide Cr2O3 Powder, please feel free to check the latest price of Chromium Oxide Cr2O3 Powder.
Chromium oxide Cr2O3 powder supplier：
As a global supplier of Chromium Oxide Cr2O3 Powders, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics, structural devices, and can provide OEM services.
Technical Parameter of Cr2O3 Powder CAS 1308-38-9 Chrome Oxide Green :
| Product Name | Chrome Oxide Green | EINECS No. | 215-160-9 | CAS No. | 1308-38-9 |
| Molecular Formula | Cr2O3 | Appearance | Bright green to dark green | ||
| Standard | SR-G | SR-D | SR-M | ||
| Cr2O3 | >99% | >99% | >99% | ||
| Fe2O3 | ≤0.2% | ≤0.2% | ≤0.2% | ||
| SiO2 | ≤0.2% | ≤0.2% | ≤0.2% | ||
| Moisture | ≤0.2% | ≤0.2% | ≤0.2% | ||
| Water soluble | ≤0.3% | ≤0.3% | ≤0.3% | ||
| Sieve residue(45um) | ≤0.5% | ≤0.5% | ≤0.2% | ||
| D50 (um) | 1.2-2 | 2-8 | 0.5-1 | ||
| Bulk density (g/cm3) | 0.6-0.8 | 1.2-1.5 | 0.4-0.65 | ||
| Hexavalent chromium | Minimum up to 0-5ppm, or customize as requirement | ||||
| Cr2O3 Powder CAS 1308-38-9 Chrome Oxide Green Properties | |
| Other Names | chromium oxide, chrome oxide, green chrome oxide |
| CAS No. | 1308-38-9 |
| Compound Formula | Cr2O3 |
| Molecular Weight | 151.99 |
| Appearance | Green Powder |
| Melting Point | 2266℃ |
| Boiling Point | 4000℃ |
| Density | 5.21 g/cm3 |
| Solubility in H2O | No |
| Thermal Expansion | N/A |
| Cr2O3 Powder Chrome Oxide Green Health & Safety Information | |
| Signal Word | N/A |
| Hazard Statements | N/A |
| Hazard Codes | N/A |
| Risk Codes | N/A |
| Safety Statements | N/A |
| Transport Information | N/A |
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