Chromium Sesquioxide CAS# 1308-38-9
Chromium oxide is a basic inorganic chemical raw material. Its chemical name is chromium trioxide, Cr2O3. It belongs to the trigonal crystal system. If a hexagonal unit cell is taken, the unit cell parameters are 4.960x 4.960??13.584 and the axial ratio is 4.473. Cr2O3 has a ??-Al2O3 structure. This rigid crystal is composed of oxygen ions that are closely packed and M3+ ions fill the octahedral gaps formed by these close packings.It is known that the ionic radii of Cr3+ and O2- are 0.069nm and 0.132nm respectively, and the ratio of positive and negative ionic radii is 0.52, in the range of 0.414~0.732. Therefore, the coordination number of Cr3+ is 6, so it is in the octahedral gap.
Chromium Sesquioxide CAS# 1308-38-9
| Chromium(III) oxide Basic information |
| Product Name: | Chromium(III) oxide |
| Synonyms: | cipigmentgreen17;cosmetichydrophobicgreen9409;cosmeticmicroblendchromeoxide9229;dichromiumtrioxide;greenchromeoxide;
greenchromicoxide;greenchromiumoxide;greenoxideofchromium |
| CAS: | 1308-38-9 |
| MF: | Cr2O3 |
| MW: | 151.99 |
| EINECS: | 215-160-9 |
| Product Categories: | Inorganics;INORGANIC & ORGANIC CHEMICALS;Dyes and Pigments;Inorganic chemistry;dyestuff metal chrome;metal oxide |
| Mol File: | 1308-38-9.mol |
 |
|
| Chromium(III) oxide Chemical Properties |
| Melting point | 2435 ??C |
| Boiling point | 4000 ??C |
| density | 5.21 |
| refractive index | 2.551 |
| Fp | 3000??C |
| storage temp. | Room Temperature |
| solubility | Insoluble in all solvents |
| form | powder |
| color | Pale to dark green |
| Specific Gravity | 5.22 |
| Odor | at 100.00?%. odorless |
| Water Solubility | Insoluble |
| Crystal Structure | Trigonal |
| Merck | 14,2234 |
| Exposure limits | NIOSH: IDLH 25 mg/m3; TWA 0.5 mg/m3 |
| Stability: | Stable. |
| CAS DataBase Reference | 1308-38-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Chromium(iii) oxide(1308-38-9) |
| EPA Substance Registry System | Chromium(III) oxide (1308-38-9) |
Related Products
Chemical Name: UV-120
Other Name: (2’,4’-Di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate)
CAS No.: 4221-80-1
Molecular Fomula: C29H42O3
Molecular weight: 438.66
Assay: ≥99%（LC）
Common English name: 5-iodo-2,3-dihydropyridazin-3-one
CAS No.: 825633-94-1
Molecular formula: C4H3IN2O
Molecular weight: 221.98
Sample: Available
Product name:Cyclopentane
Purity:96%
Appearance:White powder
Package:25kg/bag
Sample:Available
Chemical Name: 1,1,2,2-Tetrachloroethane
Other Name: Tetrachlorethane
CAS No.: 79-34-5
Molecular Formula: C2H2Cl4
Molecular Weight: 167.85
Appearance: Liquid
Calcium carbonate, with the chemical formula CaCO3, is an inorganic compound found in nature as calcite, aragonite, and vaterite. It is a white solid that is insoluble in water but soluble in acid. Widely used as a filler and coating pigment in paper and plastics, calcium carbonate also serves as a primary ingredient in the production of cement and lime. Known for its high purity and chemical stability, it is utilized in pharmaceuticals, food additives, and as a dietary calcium supplement. Its versatility makes it an essential component in various industrial applications.
Chemical Name: Zinc citrate
Synonyms: Zinc citrate trihydrate
CAS No.: 546-46-3
Molecular Formula: C6H8O7Zn
Molecular Weight: 257.5
Appearance: White powder
Product name:HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE
Purity:99%
Appearance:Light Yellow Powder
Package:Customized according to customer needs.
Sample:Available
Carbon black, also known as carbon dark, is a kind of unformed carbon. It??s a light, loose and extremely fine black greasepaint with a veritably large face area ranging from 10 to 3000m2/g. It??s an deficient combustion of carbonaceous substances( coal, natural gas, heavy oil painting, energy oil painting,etc.) under conditions of inadequate air. Or products deduced from thermal corruption. Those made from natural gas are called?? gas dark??, those made from oil painting are called?? beacon black??, and those made from acetylene are called?? acetylene black??. In addition, there are?? trough black?? and?? furnace black??.
Chemical Name: Quercetin-3-O-sophoroside
CAS No.: 18609-17-1
Molecular Formula: C27H30O17
Molecular Weight: 626.52
Chemical Name: STODDARD SOLVENT
CAS No.: 64742-88-7
Appearance: Colorless or Light Yellow Liquid
Copper(II) sulfate, with the chemical formula CuSO4, is a blue crystalline compound that is soluble in water. It is commonly used in agriculture as a fungicide and in the textile industry as a dye fixative. Copper(II) sulfate is also utilized in the manufacture of pigments, batteries, and as an algaecide in water treatment. Its distinctive blue color and reactivity make it a versatile chemical in various industrial applications, including chemical analysis and electroplating.
Water glass is an aqueous solution of silicate, which is as crystal clear as glass but as fluid as water. It is a soluble alkali metal silicate material composed of a combination of alkali metal oxides and silica.
Water glass plays an important role in industry, agriculture, technology and other fields. As a binder, water glass has occupied a place in the industrial field since its inception. It can be used to block the sewage leaked from the Fukushima nuclear power plant, or to repair cracks in brick walls; it also has anti-corrosion and acid resistance properties. , is an important material for acid-resistant floors and acid-resistant pools in industrial buildings; painting concrete pavements with water glass can also increase the frost resistance and water resistance of the pavement.
