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Preparation of chromium oxide Cr2O3 powder

Yesterday, Nancy Pelosi, speaker of the US House of Representatives, arrived in Taiwan, becoming the highest-ranking US official to visit Taiwan in 25 years.

The move was interpreted as a direct threat by China, which claims the island is part of its territory, and Beijing has repeatedly warned the US that its military will not "sit idly by" and "will take strong countermeasures".

As the international community waits to see how China will react, chipmakers in the business community are already feeling the pain of the brewing conflict between the US and China over Taiwan.

Semiconductor stocks tumbled on Tuesday in anticipation of Pelosi's visit to Taiwan.

Shares in TSMC, the world's largest and most valuable semiconductor maker, worth $440 billion, fell 2.4 per cent on Tuesday. Its Taiwanese counterparts United Microelectronics and MediaTek fell 3% and 1.6% respectively. Meanwhile, shares of the US chipmaker Intel fell 1.5 per cent on the same day.

As Ms Pelosi prepares to meet Taiwan's president, Tsai Ing-wen, on Wednesday, technology investors are keeping a close eye on her actions-and any signs of retaliation from China. In the event of a dispute between China and the US, chipmakers, especially in Taiwan, are likely to be collateral damage.

Because of the turbulent international situation, the supply and prices of many international bulk Chromium Oxide, Cr2O3 Overview, Chromium Oxide Applications, Cr2O3 Suppliers, Chromium Oxide Price are still very uncertain.

Overview of chromium oxide Cr2O3 powder

Chromium oxide is an inorganic substance with the chemical formula Cr2O3. It is a light green to dark green small hexagonal crystal. Turns brown when hot, and remains green when cold. The crystals are extremely hard and stable, and there is no change even when hydrogen is introduced under red heat. Soluble in heated potassium bromate solution, slightly soluble in acids and bases, almost insoluble in water, ethanol and acetone. Also stimulating.

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Preparation of chromium oxide Cr2O3 powder

redox method

It is prepared by mixing potassium dichromate and sulfur and performing reduction reaction through wet grinding, hot water washing, pressure filtration, drying and crushing.

K2Cr2O7 + S = K2SO4 + Cr2O3

Chromium trioxide decomposition method

It can be obtained by thermal decomposition of chromic anhydride at 1100°C, cooling and high-speed pulverization. Due to the high temperature required, a single-phase electric furnace is generally used for heating.

4CrO3= 2Cr2O3 + 3O2↑ (Condition: Heating at 1100°C)

Chromium hydroxide decomposition method

Or thermally decomposed with chromium hydroxide at high temperature, washed, dried and pulverized.

2Cr(OH)3= Cr2O3 + 3H2O

Ammonium dichromate decomposition method

(NH4)2Cr2O7= N2↑ + Cr2O3+ 4H2O

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. Also, 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, the toxicity of lead should be noted 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. Lead chrome green completely loses the characteristics of green pigment after burning 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 reagents and catalysts.

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 light-resistant coating and a special ink for printing money.

5. Used as a colorant for cosmetics, mainly for eye makeup, not for oral and lip makeup, not recommended for facial makeup 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 change randomly with the production cost of chromium oxide Cr2O3 powder, transportation cost, international situation, market supply and demand and other factors. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality products, customized services, low-cost nanomaterials and chemicals by providing a full range of customized solutions. If you are looking for Titanium Nitride TiN products, please feel free to send an inquiry to get the latest Chromium Oxide Cr2O3 powder prices (sales@ozbo.com).

Chromium oxide Cr2O3 powder supplier

Tanki New Materials Ltd. is a global supplier of chromium oxide Cr2O3 powders with 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 (chromium oxide Cr2O3 powder, Cr2O3 powder, chromium oxide Cr2O3 powder, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.

If you are looking for high quality chromium oxide Cr2O3 powder, please feel free to contact us and send an inquiry. (sales@ozbo.com).

Cr2O3 Powder CAS 1308-38-9 Chrome Oxide Green Properties
Other Nameschromium oxide, chrome oxide, green chrome oxide
CAS No.1308-38-9
Compound FormulaCr2O3
Molecular Weight151.99
AppearanceGreen Powder
Melting Point2266
Boiling Point4000
Density5.21 g/cm3
Solubility in H2ONo
Thermal ExpansionN/A
Cr2O3 Powder Chrome Oxide Green Health & Safety Information
Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
Transport InformationN/A



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In the future, Chromium Oxide, Cr2O3 Overview, Chromium Oxide Applications, Cr2O3 Suppliers, Chromium Oxide Price will be used in various high-tech fields, and the market demand for Chromium Oxide, Cr2O3 Overview, Chromium Oxide Applications, Cr2O3 Suppliers, Chromium Oxide Price will also be great. Please contact us for more information on Chromium Oxide, Cr2O3 Overview, Chromium Oxide Applications, Cr2O3 Suppliers, Chromium Oxide Price.


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