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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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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