Chromium oxide
Chromium oxide
CAS: 11118-57-3
Molecular Formula:
Chromium oxide - Names and Identifiers
| Name | Chromium oxide |
| Synonyms | Chromium oxide TIANFU-CHEM Chromium oxide |
| CAS | 11118-57-3 |
| EINECS | 2343612 |
Chromium oxide - Introduction
Chromium oxide is an important inorganic compound with the chemical formula Cr2O3. The following is a description of the nature, use, formulation and safety information of Chromium oxide:
Nature:
1. Chromium oxide is a green solid with high melting point and good thermal stability.
2. At room temperature, Chromium oxide is insoluble in water, but it can react with alkali at high temperature to generate soluble chromate.
3. Chromium oxide has a certain reducibility and can react with some metals at high temperatures to generate the corresponding metal chromium.
Use:
1. Chromium oxide is widely used in the coating industry. It can be used as a green pigment for the manufacture of paints, coatings, pigments, glass and other products.
2. Chromium oxide is also an important raw material for making ceramics and ceramic pigments.
3. In the electronics industry, Chromium oxide is used to manufacture magnetic recording materials, magnetic recording materials, and magnetic tapes.
4. Chromium oxide is widely used in the chemical industry, such as catalysts, preservatives, etc.
Preparation Method:
1. The common method of preparing Chromium oxide is to oxidize chromium or other chromium compounds at high temperature. For example, chromium powder or chromic acid can be reacted with an alkaline hydroxide to give Chromium oxide.
Cr 3NaOH → Na2CrO4 H2O
Na2CrO4 HCl → CrO3 2NaCl H2O
2CrO3 → Cr2O3 O2
Safety Information:
1. Chromium oxide is non-toxic to the human body at room temperature, it may cause irritation and damage to the lungs when inhaling Chromium oxide particles or their aerosols.
2. When dealing with Chromium oxide, care should be taken to avoid direct contact with skin and eyes, and good ventilation measures should be taken.
3. Chromium oxide is a combustible substance that may burn when it encounters a fire source, releasing toxic gases.
4. Chromium oxide should be stored in a closed container, away from combustibles and oxidants.
Nature:
1. Chromium oxide is a green solid with high melting point and good thermal stability.
2. At room temperature, Chromium oxide is insoluble in water, but it can react with alkali at high temperature to generate soluble chromate.
3. Chromium oxide has a certain reducibility and can react with some metals at high temperatures to generate the corresponding metal chromium.
Use:
1. Chromium oxide is widely used in the coating industry. It can be used as a green pigment for the manufacture of paints, coatings, pigments, glass and other products.
2. Chromium oxide is also an important raw material for making ceramics and ceramic pigments.
3. In the electronics industry, Chromium oxide is used to manufacture magnetic recording materials, magnetic recording materials, and magnetic tapes.
4. Chromium oxide is widely used in the chemical industry, such as catalysts, preservatives, etc.
Preparation Method:
1. The common method of preparing Chromium oxide is to oxidize chromium or other chromium compounds at high temperature. For example, chromium powder or chromic acid can be reacted with an alkaline hydroxide to give Chromium oxide.
Cr 3NaOH → Na2CrO4 H2O
Na2CrO4 HCl → CrO3 2NaCl H2O
2CrO3 → Cr2O3 O2
Safety Information:
1. Chromium oxide is non-toxic to the human body at room temperature, it may cause irritation and damage to the lungs when inhaling Chromium oxide particles or their aerosols.
2. When dealing with Chromium oxide, care should be taken to avoid direct contact with skin and eyes, and good ventilation measures should be taken.
3. Chromium oxide is a combustible substance that may burn when it encounters a fire source, releasing toxic gases.
4. Chromium oxide should be stored in a closed container, away from combustibles and oxidants.
Last Update：2024-04-10 22:29:15
