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
Chemical Name: Potassium Castorate
CAS No.: 8013-05-6
Molecular Formula: C57H107K3O12
Molecular Weight: 1101.74718
Appearance: 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.
Common English name: 5-iodo-2,3-dihydropyridazin-3-one
CAS No.: 825633-94-1
Molecular formula: C4H3IN2O
Molecular weight: 221.98
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??.
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.
Chemical Name: STODDARD SOLVENT
CAS No.: 64742-88-7
Appearance: Colorless or Light Yellow Liquid
Chemical Name: Quercetin-3-O-sophoroside
CAS No.: 18609-17-1
Molecular Formula: C27H30O17
Molecular Weight: 626.52
Chemical Name: o-Xylene
Synonyms: 1,2-Dimethylbenzene; ortho-xylene
CAS No.: 95-47-6
Molecular Formula: C8H10
Molecular Weight: 106.17
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.
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.
Bentonite, sodium-activated, is a type of clay rich in montmorillonite minerals, which undergoes a process to increase its sodium content. This alteration enhances its swelling and adsorptive properties, making it a highly effective thickener and gel-forming agent. Sodium bentonite is widely used in drilling muds, foundry sands, and as a binder in various industrial applications. Its ability to absorb liquids and form stable gels makes it invaluable in cosmetics, agriculture, and as a component in the manufacturing of ceramics and paper products.
Chemical Name: Ammonium Iron(II) Sulfate
Synonyms: Diammonium iron bis(sulphate); iron (ii) ammonium sulfate
CAS No.: 10045-89-3
Molecular Formula: FeH5NO4S
Molecular Weight: 170.95
