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Calcium silicate CAS#1344-95-2

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  • Calcium silicate CAS#1344-95-2
  • Calcium silicate CAS#1344-95-2
  • Calcium silicate CAS#1344-95-2
  • Calcium silicate CAS#1344-95-2
  • Calcium silicate CAS#1344-95-2

›

Calcium silicate CAS#1344-95-2

High-Temperature Insulation Capability: Calcium silicate, particularly calcium orthosilicate, is widely used as a safe alternative to asbestos for high-temperature insulation in industrial piping and equipment.


Versatile Material Forms: Available as crystalline or amorphous white to off-white material, and in various hydrate forms, allowing flexibility for different industrial applications.


Chemical Stability: Insoluble in water and capable of forming a gel with inorganic acids, providing stable performance under various chemical environments.


Adjustable Composition and Safety: Contains varying ratios of CaO and SiO₂ (including tricalcium and dicalcium silicate), offering customizable properties while maintaining a safe, non-toxic profile.


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Product Description

Product Application of Calcium silicate CAS#1344-95-2

Hydrous/anhydrous silicate; CaO+SiO₂ in varying ratios; occurs naturally as wollastonite, afwillite, grammite

Synthesis: High-temperature calcination of CaO+SiO₂ (reaction: CaO+SiO₂+heat→CaSiO₃)

Key types: Calcium orthosilicate, tricalcium silicate (3CaO·SiO₂), dicalcium silicate (2CaO·SiO₄)

Physical properties: White/off-white crystalline/amorphous solid; various hydrated forms; water-insoluble

Chemical properties: Forms gels with inorganic acids; 5% aqueous suspension pH: 8.4–10.2

Primary application: Safe asbestos substitute for high-temperature insulation (industrial pipelines/equipment)


Product Application of Calcium silicate CAS#1344-95-2

Core property: Excellent anticaking performance

Anticaking applications: Dusting powders, cosmetics (face powders, eye shadows), table salt, foods, pharmaceuticals, agricultural pesticides

Thermal insulation: Safe asbestos substitute

Industrial components: Inherent in lime glass & Portland cement; reinforcing filler for elastomers & plastics

Other uses: Liquid/gas/vapor absorbent; suspending agent; pigment extender; refractory binder; chromatographic medium; road construction raw material


Product Information

Parameters


Melting point1540℃ [CRC10]
density2.9 g/mL at 25 °C (lit.)
solubilityPractically insoluble in water; forms a gel with mineral acids. It can absorb up to 2.5 times its weight of liquids and still remain a free-flowing powder.
formwhite monoclinic crystals
Specific Gravity2.9
colorwhite monoclinic crystals, crystalline
Odorat 100.00?%. odorless
PH9.5-11.5 (5% in H2O)
Water Solubilityinsoluble H2O [HAW93]
Merck131,707
Stability:Stable.
Cosmetics Ingredients FunctionsABSORBENT
BULKING
OPACIFYING
LogP0.651 (est)
CAS DataBase Reference1344-95-2(CAS DataBase Reference)
EPA Substance Registry SystemCalcium silicate (1344-95-2)


Safety Information


Hazard CodesXi
Risk Statements36/37
Safety Statements22-26-37/39
OEBB
OELTWA: 10 mg/m3 (total)
WGK Germany3
RTECSVV9170000
TSCATSCA listed
Hazardous Substances Data1344-95-2(Hazardous Substances Data)


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