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
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.
Kaolin, also known as china clay, is a naturally occurring hydrated aluminum silicate mineral. It is a soft, white, plastic clay that is widely used in ceramics, papermaking, and as a pigment in paints, coatings, and plastics. Kaolin is valued for its fine particle size, purity, and ability to improve the brightness and opacity of materials. Its inert nature and high refractive index make it ideal for various industrial applications, including cosmetics and pharmaceuticals.
Chemical Name: Dehydrocholic acid
Synonyms: Acide dehydrocholique; Triketocholanic acid
CAS No.: 81-23-2
Molecular Formula: C24H34O5
Molecular Weight: 402.53
Appearance: Powder
Strontium chloride is an inorganic compound with the chemical formula SrCl2. It is a white crystalline solid that is highly soluble in water. This compound is used in various applications, including the production of strontium salts for??? and pyrotechnics, where it imparts a deep red color to the flame. Additionally, strontium chloride is utilized in metallurgy as an ingredient in alloys and in the medical field for certain diagnostic procedures. Its chemical properties make it a valuable substance in a range of industrial and scientific applications.
Aluminum chlorohydrate is an inorganic compound often used as a coagulant in water treatment processes. It is also known for its astringent properties and is utilized in various personal care products, such as antiperspirants and deodorants, due to its ability to temporarily close sweat glands. It enhances the viscosity and stability of formulations, making it a valuable ingredient in cosmetics and pharmaceuticals.
Silicon dioxide, commonly known as silica, is a naturally occurring compound found in quartz and sand. It is a primary component of most rocks and is widely used in various industries due to its high thermal stability, chemical inertness, and optical clarity. In chemical applications, it is valued for its abrasive, refractory, and adsorptive properties, making it essential in products like glass, ceramics, and electronics.
Aluminum chlorohydrate is an inorganic compound often used as a coagulant in water treatment processes. It is also known for its astringent properties and is utilized in various personal care products, such as antiperspirants and deodorants, due to its ability to temporarily close sweat glands. It enhances the viscosity and stability of formulations, making it a valuable ingredient in cosmetics and pharmaceuticals.
Ammonium sulfamate is a white crystalline compound with the chemical formula (NH4)2SO3. It is a versatile chemical used in various applications, including as a flame retardant, a fertilizer ingredient, and a chemical intermediate. In the agricultural sector, it serves as a source of nitrogen, promoting plant growth. As a flame retardant, it is effective in reducing the flammability of materials. Additionally, it is used in the synthesis of other chemicals due to its reactivity with amines and other organic compounds. Its properties make it a valuable component in a range of industrial processes.
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: Imazalil Sulfate
CAS No.: 58594-72-2
Molecular Formula: C14H14Cl2N2O.H2SO4
Molecular Weight: 395.26
Appearance: Solid
Ammonium sulfamate is a white crystalline compound with the chemical formula (NH4)2SO3. It is a versatile chemical used in various applications, including as a flame retardant, a fertilizer ingredient, and a chemical intermediate. In the agricultural sector, it serves as a source of nitrogen, promoting plant growth. As a flame retardant, it is effective in reducing the flammability of materials. Additionally, it is used in the synthesis of other chemicals due to its reactivity with amines and other organic compounds. Its properties make it a valuable component in a range of industrial processes.
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??.
