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  • Trimethylchlorosilane (TMCS)  CAS :75-77-4

    Trimethylchlorosilane (TMCS) CAS :75-77-4

    Name: Chlorotrimethylsilane CAS number: 75-77-4 Molecular formula: C3H9ClSi Molecular weight: 108.64 EINECS number: 200-900-5 Mol file: 75-77-4.mol

  • Trimethylethoxysilane CAS :1825-62-3

    Trimethylethoxysilane CAS :1825-62-3

    Name: Ethoxytrimethylsilane CAS number: 1825-62-3 Molecular formula: C5H14OSi Molecular weight: 118.25 EINECS number: 217-370-6 Mol file: 1825-62-3.mol

  • Dimethyldimethoxysilane CAS1112-39-6 DMDMS

    Dimethyldimethoxysilane CAS1112-39-6 DMDMS

    Specification English name: Dimethyldimethoxysilane CAS number: 1112-39-6 Molecular formula: C4H12O2Si Molecular weight: 120.22 EINECS number: 214 189 4 Mol file: 1112-39-6.mol Applications As a structural control agent, chain extender, and filler treatment agent, it is widely used in the treatment of organic silica gel and white carbon black Purpose As a structural control agent, chain extender, and filler treatment agent, it is widely used in the treatment of organic silica gel and white carbon black. This product is used as a structural control agent and chain extender to improve mechanical processing performance, extend the storage time of rubber blends, and can replace hydroxyl silicone oil for use. Widely used in the treatment of organic silicone and white carbon black Purpose Dimethyldimethoxysilane is used as a structural control agent and chain extender to improve mechanical processing performance, extend the storage time of rubber blends, and can replace hydroxy silicone oil....

  • Iodotrimethylsilane CAS:16029-98-4 (TMIS)

    Iodotrimethylsilane CAS:16029-98-4 (TMIS)

    Properties of trimethyliodosilane Melting point<0 ° C Boiling point 106 ° C (lit.) Density 1.406 g/mL at 25 ° C (lit.) Refractive index n20/D 1.471 (lit.) Flash point − 25 ° F Storage conditions -20 ° C Solubility Reacts Form Liquid Specific gravity 1.47 Clear colors to reddish Water solubility reactions Sensitivity: Moisture&Light Sensitivity Hydrolysis sensitivity 8: Reacts quickly with moisture, water, protoc solvents BRN 1731136 Stability Sensitivity (Reactive) InchiKey CSRZQMIRAZTJOY-UHFFFFAOYSA-N CAS Database 16029-98-4 (CAS DataBase Reference) NIST Chemical Information Iodotrimethylsilane (16029-98-4) EPA Chemical Information Silane, iodotrimethyl - (16029-98-4)

  • Hexamethyldisilane CAS:1450-14-2 (HMD)

    Hexamethyldisilane CAS:1450-14-2 (HMD)

    Properties of Hexamethyldisilane Melting point 9-12 ° C (lit.) Boiling point 112-114 ° C (lit.) Density 0.715 g/mL at 25 ° C (lit.) Refractive index n20/D 1.422 (lit.) Flash point 29 ° F Storage conditions Store at<=20 ° C Sol common organic solvents; Insul H2O Form liquid Specific gravity 0.729 Colorless Insoluble in water Double in alcohol, ether and acetone Hydrolysis sensitivity 1: no significant reaction with acute systems BRN 1633463 Stability InchiKey NEXSMEBSBIABKL-UHFFFAOYSA-N CAS Database 1450-14-2 (CAS DataBase Reference) NIST Chemical Substance Information Disilane, hexagonal - (1450-14-2) EPA Chemical Substance Information Disilane, hexagonal - (1450-14-2)

  • Hexamethyldisiloxane CAS:107-46-0

    Hexamethyldisiloxane CAS:107-46-0

    Introduction:  Hexamethyldisiloxane (silicone ether, MM sealing agent) is a colorless and transparent liquid that is prone to deliquescence. Insoluble in water, soluble in various organic solvents. Used as silicone oil, silicone rubber, pharmaceuticals, gas chromatography stationary liquids, analytical reagents, hydrophobic agents, etc. Obtained by hydrolysis of trimethylchlorosilane.  The physical properties of hexamethyldisiloxane  colorless and transparent liquids. Easily deliquescent, flammable, and in contact with high heat, open flames, and strong oxidizing agents, there is a risk of combustion. Boiling point 99.5 ℃. Flash point -1.1 ℃. Relative density (d2525) 0.7606. The refractive index is 1.3750. Insoluble in water, soluble in various organic solvents.  Hexamethyldisiloxane is an important primary organic silicon raw material, often used as a capping agent in the production of silicone oil, or as a cleaning agent for silicone rubber, pharmaceuticals, gas c...

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Anhui Techchem Industrial Co.,Ltd. will participate in the Shanghai CPHI China 2026 exhibition.

Anhui Techchem Industrial Co.,Ltd. will participate in the Shanghai CPHI China 2026 exhibition.

Anhui Techchem Industrial Co.,Ltd. will participate in the Shanghai CPHI China 2026 exhibition. The 24th CPHI China 2026 will grandly kick off at the Shanghai New International Expo Center from June 1...

Classification and main uses of highly active magnesium oxide
2022-05-31
Magnesium oxide is one of the main raw materials of magnesium cementitious materials. According to the calcination production process, it can be divided into light-burned magnesium oxide and dead-burned magnesium oxide. Activated magnesia is divided into high activity, medium activity and low activity according to the quality of iodine absorption (the activated magnesia used in the magnesite industry belongs to high activity magnesia).

Light magnesia refers to magnesium oxide formed from magnesium compounds after magnesite is calcined at 700-900 degrees Celsius, also known as active magnesium oxide. The chemical formula is MgO, the relative molecular weight is 40.3, the melting point is 2800 degrees Celsius, and the boiling point is 3600 degrees Celsius , Odorless, tasteless, non-toxic, insoluble in pure water and organic solvents, water-soluble due to the presence of carbon dioxide, soluble in acid or ammonium salt solution, easily soluble.

Properties and Application of Highly Active Magnesium Oxide

The specific surface area of highly active magnesia is much larger than that of ordinary industrial light magnesia and heavy magnesia. Highly active magnesium oxide is an important material for the preparation of inorganic materials, modern advanced electronic components and other harmful gas adsorbents. Highly active magnesium oxide has chemical activity and physical adsorption properties due to its fine shape and granular appearance.

The main domestic test method for highly active magnesium oxide is the iodine value test method, because the high activity magnesium oxide has high activity, good dispersibility, and is easy to compound with polymers or other materials.

Highly active magnesium oxide can be used as accelerator and activator for rubbers such as butyl rubber, neoprene, styrene-butadiene rubber and fluororubber. The activity of magnesium oxide can increase the crosslinking density of butyl rubber, thereby improving the physical properties of rubber stoppers. Highly reactive magnesium oxide is used as a filler for adhesives, plastics, paints and paper. Activated magnesia can also be used as ceramics, glass, thermal insulation materials and magnesia cement.

The characteristics of highly active magnesium oxide are magnesium oxide powder with high activity value. The use method is also affected by the season. For example, it is easy to absorb moisture to form magnesium hydroxide in summer.

Highly active magnesium oxide has fine particle morphology, high activity and adsorption performance, and is an important chemical raw material for the preparation of inorganic materials, electronic components, etc. The indicators of activated magnesium oxide are different from ordinary magnesium oxide. Due to its high activity and high dispersibility, activated magnesium oxide can even be made into fibrous magnesium oxide, which is easy to be compounded with polymers or other materials. Due to its high dispersibility, this ultrafine magnesium oxide can also be used as fillers for coatings, paper and cosmetics, fillers and reinforcements for plastics and rubbers, and auxiliary materials for various electronic materials, etc.
 
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