Calcium silicate

Name: Calcium silicate
Brand: Vaqora Chemicals
SKU: VQ-014396

About Calcium silicate

Calcium silicate is an alkaline earth compound carrying the CAS registry number 1344-95-2 with a typical assay of ≥87%. Its molecular formula is CaH6O8Si2 and its molecular weight is 230.29 g/mol. The IUPAC name is calcium bis(trihydroxy(oxido)silane). Alternative names: Calcium metasilicate and Wollastonite.

It is supplied as an off white powder. Reported physical data include a density of 2.9 g/cm3. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for ceramics and glass and materials research. It is used across academic and industrial research.

Vaqora Chemicals supplies Calcium silicate in 500 g, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Ceramics & glass
Materials research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Calcium silicate
Catalogue No.	VQ-014396
CAS Number	1344-95-2
IUPAC name	calcium bis(trihydroxy(oxido)silane)
Molecular formula	CaH₆O₈Si₂
Molecular weight	230.29 g/mol
Exact mass	229.9227
Purity / assay	≥87%
HSN code	25309070
InChIKey	LECAAGVQUHQAJK-UHFFFAOYSA-N
SMILES	O[Si](O)(O)[O-].O[Si](O)(O)[O-].[Ca+2]
PubChem CID	73415800

Physical properties
Physical form	Powder
Appearance	Off white powder
Density	2.9 g/cm3
H-bond donors / acceptors	6 / 8
TPSA	168 Å²
Synonyms	Calcium metasilicate, Wollastonite, Calcarea silicata, Huberderm 1000, INS NO.552, INS-552, Head Cold, Calcium salt of silicic acid, Calcium hydrosilicate, Calcium monosilicate, Calcium Orthosilicate, Calcium silicate, synthetic nonfibrous

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264 + P265, P271, P280, P304 + P340, P305 + P351 + P338, P319, P337 + P317, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1344-95-2

AR

Calcium silicate, AR

CAS: 1344-95-2
Formula: CaH₆O₈Si₂
MW: 230.29 g/mol

VQ-046670

Frequently asked questions

What is the CAS number of Calcium silicate?

The CAS Registry Number of Calcium silicate is 1344-95-2. It is also known as Calcium metasilicate, Wollastonite, Calcarea silicata.

What is the molecular formula and molecular weight of Calcium silicate?

Calcium silicate has the molecular formula CaH6O8Si2 and a molecular weight of 230.29 g/mol. Its IUPAC name is calcium bis(trihydroxy(oxido)silane).

Which grade and pack sizes of Calcium silicate can I order?

We supply Calcium silicate in (≥87%) grade, in 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Calcium silicate?

Yes. Every lot of Calcium silicate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Calcium silicate be shipped internationally?

Yes. Calcium silicate is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.