Chromium(VI) oxide CAS# 1333-82-0
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- Appearance:Dark red flaps
- Assay: 99. 8%min
- Packaging:50kg/ Steel drum
- Sample: Available
Chromium(VI) oxide: The Complete Guide
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Quality Control of Chromium(VI) oxide
Quality Control & MSDS
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Description of Chromium(VI) oxide
Chromium trioxide is an inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. This compound is a dark-purple solid under anhydrous conditions, bright orange when wet and which dissolves in water concomitant with hydrolysis. Millions of kilograms are produced annually, mainly for electroplating. Chromium trioxide is a powerful oxidiser and a suspected carcinogen.
Basic Info of Chromium(VI) oxide
R24/25; R26; R35; R42/43; R45; R46; R48/23; R50/53; R62; R9
O; T+; N
GHS03, GHS05, GHS06, GHS08, GHS09
H271; H301 + H311; H314; H317; H330; H334; H340; H350; H361f; H372; H410
P201; P210; P260; P280; P284; P301 + P310 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338; P308 + P313; P371 + P380 + P375; P403 + P233
Appearance & Physical State
dark red crystals or powder
Stable. Strong oxidizer. Reacts with most organic material in a violent and often explosive fashion. Moisture sensitive.
Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
What is Chromium(VI) oxide?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Chromium(VI) oxide which has developed particularly rapidly in recent years. Do you know about Chromium(VI) oxide?
The official answer:Chromium trioxide is an inorganic substance with the molecular formula CrO3 and a molecular weight of 99.99. It is a dark red or dark purple rhombohedral crystal, easily deliquescent. It begins to decompose when heated to the melting point and decomposes completely when heated to the boiling point. Used in the production of chromium compounds, oxidizing agents, catalysts, in addition to wood preservation, electroplating, etc. Produced by the reaction of concentrated sulfuric acid and potassium dichromate.
What’s the application of Chromium(VI) oxide?
1、It is mainly used in the electroplating industry, as raw material for electroplating chromium of bicycle, sewing machine, watch, meter, flashlight, daily hardware, etc. It is also used to make high purity chromium metal. It is the raw material for manufacturing chrome oxide green and zinc chrome yellow; it is also the raw material for producing low-temperature conversion catalysts, high-temperature conversion catalysts, and high-pressure methanol synthesis catalysts. It is used as a mordant in dyeing wool fabric and as an oxidizer in the printing and dyeing industry. In addition, it is also used for wood preservation.
2、Used as a catalyst for taking medium-pressure polyethylene by Phillip’s method.
3, an important chromium compound, chromic anhydride is the most important raw material for the electroplating industry, used as the main raw material for electroplating chromium. Most chromic anhydride is consumed in the electroplating industry. Chromic anhydride is a good oxidizing agent, used in bleaching and refining, also used as raw material for dyes, mordant, tanning agent, and catalyst for organic synthesis reaction. In addition, it is also used in medicine, ceramics, colored glass, and other industries.
4、Used as analytical reagent, strong oxidizing agent, and preparation of chromate.
5、Used as a catalyst for the synthesis of polyethylene. Also used in chromium plating, mordant, and preparation of pure chromium metal.
6、Application in the passivation of galvanization Most of the passivation of galvanization layer uses chromic anhydride, which is the main component of film formation. In the chemical oxidation of aluminum and alloys, chromic anhydride is the oxidizing agent in the solution and an indispensable component for the formation of the film layer.
7、It is used in the electroplating industry, pharmaceutical industry, printing industry, leather tanning, and fabric mordanting.
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