Molekula
Calcium Silicate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Calcium silicate is a naturally occurring or synthetic mineral compound, primarily used as an insulating material, desiccant, and filler in construction, agriculture, and industrial applications. It is also widely used as an anti-caking agent in table salt, foods and cosmetics, and as a constituent of Portland cement and lime glass. It absorbs moisture effectively and resists high temperatures, making it ideal for thermal insulation, packaging, and soil conditioning. This chemical has a CAS number of 1344-95-2, with the molecular formula CaH6O8Si2 and a molecular weight of 230.29. It can be stored at ambient conditions and carries a signal word of "Warning" per safety classifications. Molekula supplies calcium silicate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, monoclinic crystals |
| Melting Point | 1540 °C |
| Density | 2.92 g/cm³ |
| Water Solubility | Insoluble in water |
| Vapour Pressure | 0 mmHg (approx) |
Source: PubChem CID 73415800 (HSDB, The National Institute for Occupational Safety and Health (NIOSH))
Identification
| Property | Value |
|---|---|
| SKU | 90036794 |
| CAS Number | 1344-95-2 |
| IUPAC Name | calcium bis(trihydroxy(oxido)silane) |
| Molecular Formula | CaH6O8Si2 |
| Molecular Weight | 230.29 |
| Exact Mass | 229.9227 |
| SMILES | O[Si](O)(O)[O-].O[Si](O)(O)[O-].[Ca+2] |
| InChIKey | LECAAGVQUHQAJK-UHFFFAOYSA-N |
| InChI | InChI=1S/Ca.2H3O4Si/c;2*1-5(2,3)4/h;2*1-3H/q+2;2*-1 |
| PubChem CID | 73415800 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28399050 |
| Tariff Code | 2839900020 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Calcarea silicata
- Calcium hydrosilicate
- Calcium monosilicate
- Calcium Orthosilicate
- Calcium salt of silicic acid
- Calcium silicate, synthetic nonfibrous
- Calflo E
- Head Cold
- Huberderm 1000
- INS NO.552
Frequently asked questions
What is calcium silicate commonly used for?
Calcium silicate is primarily used as a drying agent, insulation material, and in applications requiring moisture absorption, such as in packaging for pharmaceuticals or electronics.
What is the chemical formula and molecular weight of calcium silicate?
The chemical formula is **CaH₆O₈Si₂**, and the molecular weight is **230.29 g/mol**.
How should calcium silicate be stored?
Store calcium silicate in a **dry, ambient-temperature environment**, protected from moisture and humidity.
What grades of calcium silicate does Molekula supply?
Molekula supplies **technical/industrial-grade calcium silicate** for drying and insulation applications.
Can Molekula supply calcium silicate in bulk quantities?
Yes, Molekula can provide **bulk quantities** of calcium silicate upon request, depending on availability.
What documentation comes with a calcium silicate order?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.