Silicon dioxide CAS#7631-86-9
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.
Silicon dioxide CAS#7631-86-9
| Silicon dioxide Chemical Properties |
| Melting point | >1600???C(lit.) |
| Boiling point | >100???C(lit.) |
| density | 2.2-2.6?g/mL?at 25???C |
| vapor pressure | 13.3hPa at 1732?? |
| refractive index | 1.46 |
| Fp | 2230??C |
| storage temp. | 2-8??C |
| solubility | Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides. |
| form | suspension |
| pka | 6.65-9.8[at 20 ??] |
| Specific Gravity | 2.2 |
| color | White to yellow |
| PH | 5-8 (100g/l, H2O, 20??)(slurry) |
| Odor | at 100.00?%. odorless |
| Resistivity | 1??10*20 (??/?̦?.cm) |
| Water Solubility | insoluble |
| Hydrolytic Sensitivity | 6: forms irreversible hydrate |
| Sensitive | Hygroscopic |
| Crystal Structure | Trigonal |
| Merck | 14,8493 |
| Exposure limits | NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3 |
| Stability: | Stable. |
| CAS DataBase Reference | 7631-86-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Silicon(iv) oxide(7631-86-9) |
| IARC | 3 (Vol. Sup 7, 68) 1997 |
| EPA Substance Registry System | Silica (7631-86-9) |
| Safety Information |
| Hazard Codes | Xn,Xi |
| Risk Statements | 36/37/38-36/37-22-43-52/53-36/38 |
| Safety Statements | 26-37/39-36-36/37/39-36/37-61 |
| OEB | B |
| OEL | TWA: 6 mg/m3 |
| HS Code | 2811221000 |
| Toxicity | LC inhalation in rat: > 200gm/m3/1H |
| IDLA | 3,000 mg/m3 |
Related Products
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.
Chemical Name: Arabic gum
CAS No.: 9000-01-5
Appearance: powder
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.
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.
Product name:Cyclopentane
Purity:96%
Appearance:White powder
Package:25kg/bag
Sample:Available
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.
Sodium aluminosilicate (CAS No.73987-94-7) is an inorganic compound.
It has a certain application in industry. For example, in the ceramic industry, sodium aluminosilicate can be used as a flux and an ingredient in ceramic glazes, helping to improve the performance and appearance of ceramics.
In some chemical processes, it may also function as a precipitating agent or an additive.
In the field of materials science, the properties and structural characteristics of sodium aluminosilicate make it have potential application value in the research and development of some new materials.
Chemical Name: STODDARD SOLVENT
CAS No.: 64742-88-7
Appearance: Colorless or Light Yellow Liquid
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.
Chemical Name: Potassium Castorate
CAS No.: 8013-05-6
Molecular Formula: C57H107K3O12
Molecular Weight: 1101.74718
Appearance: Yellow Liquid
Carbon is a fundamental element found in all organic life and a key component of many inorganic materials. It is known for its ability to form long chains and complex structures, which makes it the basis of various compounds, including diamond, graphite, and fullerenes. Carbon is used in a wide range of applications, from manufacturing steel and other alloys to being a key element in batteries and as a pigment in inks and paints.
