Back سيليكات الكالسيوم Arabic کلسیوم سیلیکات AZB Calciumsilicat German کلسیم سیلیکات Persian Kalsiumsilikaatti Finnish Silicate de calcium French Kalcium-szilikát Hungarian ケイ酸カルシウム Japanese Calciumsilicaat Dutch Silicat de calciu Romanian

Calcium silicate

For the metasilicate, see Calcium metasilicate.
Calcium silicate
Names
Preferred IUPAC name
Calcium silicate
Systematic IUPAC name
Dicalcium silicate
Other names
  • Belite
  • Calcium monosilicate
  • Calcium hydrosilicate
  • Calcium metasilicate
  • Calcium orthosilicate
  • Micro-cell
  • Silene
  • Silicic acid calcium salt
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.014.282 Edit this at Wikidata
EC Number
  • 235-336-9
E number E552 (acidity regulators, ...)
KEGG
MeSH Calcium+silicate
UNII
  • InChI=1S/2Ca.O4Si/c;;1-5(2,3)4/q2*+2;-4 ☒N
    Key: JHLNERQLKQQLRZ-UHFFFAOYSA-N ☒N
  • [Ca++].[Ca++].[O-][Si]([O-])([O-])[O-]
Properties
Ca2O4Si
Molar mass 172.237 g·mol−1
Appearance White crystals
Density 2.9 g/cm3 (solid)[1]
Melting point 2,130[2] °C (3,870 °F; 2,400 K)
0.01% (20 °C)[1]
Thermochemistry
84 J/(mol·K)[3]
−1630 kJ/mol[3]
Pharmacology
A02AC02 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Flash point Not applicable
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)[1]
REL (Recommended)
 TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)[1]
IDLH (Immediate danger)
 N.D.[1]
Safety data sheet (SDS) [4]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Calcium silicate can refer to several silicates of calcium including:

This article focuses on Ca2SiO4, also known as calcium orthosilicate. It is also referred to by the shortened trade name Cal-Sil or Calsil. All calcium silicates are white free-flowing powders. They are components of important structural materials because they are strong, cheap, and nontoxic.

  1. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0094". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ R. B. Heimann, Classic and Advanced Ceramics: From Fundamentals to Applications, Wiley, 2010 ISBN 352763018X
  3. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.
  4. ^ "SDS Sheet Library". BNZ Materials. Archived from the original on 2012-03-04. Retrieved 2017-07-19.

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