Chromic Oxide

Chrome oxide green,MF Cr2O3,molecular weight 151.99,light green or dark green powder,density 5.21g/cm3,melting point 2265 ºC,boiling point 3654ºC.Chrome oxide green has metallic luster,with characteristic of magnetism,heat resistance,sunlight resistance,insoluble in water or acid,resistance to acid and alkali.Chrome oxide green has no influence to concentrated acid,alkali or sulfur dioxide, sulfureted hydrogen,etc. Chrome oxide green is stable to high temperature,extreme weather or corrosive gases,with excellent weather resistance and thermal shock stability.It widely used as raw refractory material.

Nature:
1. Appearance: Chromium oxide is a green crystalline particle or powder.
2. Melting and boiling point: the melting point of chromium oxide is about 2435°C, and the boiling point is more than 4000°C.
3. Density: The density of chromium oxide is about 5.21 g/cm³.
4. Chemical properties: Chromium oxide is a highly stable compound, insoluble in water and most solvents. It is highly resistant to acids and bases. In addition, chromium oxide has good wear resistance and high temperature resistance.

Mainly used for smelting chromium metal and chromium carbide. Used as a glaze for enamels and ceramics. Coloring agent for artificial leather, building materials, etc. It is used in the manufacture of fast coating, abrasive material, green polishing paste and special ink for printing banknotes. Used as a catalyst for organic synthesis. It's a high-grade green paint.

1. Pigment: Because of its bright green color, it is often used as a green pigment in the industries of ceramics, glass, coatings and plastics.
2. Corrosion inhibitor: Chromium oxide can be used as a corrosion inhibitor for steel, alloys and other metals to extend their life.
3. Catalyst: Chromium oxide can be used as a catalyst in chemical reactions, such as ammonia oxidation reactions.
4. Electronic materials: Due to its good electronic properties, chromium oxide is widely used in electronic devices, magnetic materials and optical coatings.

Tine mafekitori akawanda emhando yepamusoro nekubatana kwakadzama, ayo anogona kukupa zvigadzirwa zvemhando yepamusoro nemitengo yemakwikwi. Uye isu tinogonawo kupa zvidzikiso pakutenga kwakawanda. Uye isu tinobatirana nemakambani mazhinji ehunyanzvi ekutakura zvinhu, anogona kuendesa zvigadzirwa zvakachengeteka uye zvakanaka kumaoko ako. Nguva yekutumira inenge 3-20 mazuva mushure mekusimbiswa kwekubhadhara.

Product name: Chromium(III) oxide

Alias: Anadonis green Chrome green Chrome ocher Chrome oxide green Chromia Chromic oxide Chromium sesquioxide Green cinnabar Green oxide of chromium Green rouge Oil green Ultramarine green

Molecular formula: Cr₂O₃

Molecular weight: 151.99

Uses

1. Lead chrome green pigments is mainly used in in coating industry, most of the preparation is based on this type of green paint.
In addition, also used in paint and plastic (1).
The scope of its application is very similar with lead chromium yellow.
Because of containing chrome yellow, application note its lead toxicity.
Lead, chromium iron is contained in blue, and contain antioxidant lead chromate, meets Mars has the possibility of spontaneous combustion, so when the dust in the dry, grinding when possible.
After burning of lead chrome green completely lose the characteristics of green pigment, into a dark brown yellow substance.
In addition, in the lacquer production, rolling process are not directly use the lead chrome green rolling, and to transfer into the chrome green enquiry pulp lead process, in case in rolling were burning.
2. Used in metallurgy, also used in ceramic, refractory, paint industry, as raw material and organic synthesis catalyst.
3. Used as analytical reagent, catalyst.
4. Used as adhesive and sealant of coloration, and wear resistance, corrosion resistance filler.
Also can be used for enamel, ceramic, leather, stain of construction materials;
catalyst ofOrganic chemistry synthesis;
Fast coatings and special ink of printing money paper .
5. Used as a cosmetic colorant, mainly used for eye makeup, cosmetics, but shall not be used for the mouth and lips; is not recommended for facial makeup and nail polish.
6. Chromium (III) oxide is one of the major components of silver plating layer immersion bright fluid, a new preparation of Chromium (III) oxide is an important raw material

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