Names
IUPAC name Lithium metasilicate
Identifiers
CAS NumberY
3D model (JSmol)
ChemSpider
ECHA InfoCard
EC Number233-270-5
PubChem CID
UNIIY
CompTox Dashboard (EPA)
InChI InChI=1S/2Li.O3Si/c;;1-4(2)3/q2*+1;-2Key: PAZHGORSDKKUPI-UHFFFAOYSA-N
SMILES [Li+].[Li+].[O-][Si](=O)[O-]
Properties
Chemical formulaLi2SiO3
Molar mass89.566 g/mol
Appearancecolorless crystals
Density2.52 g/cm3
Melting point1,201 °C (2,194 °F; 1,474 K)
Solubility in waterinsoluble
Refractive index ( n D )1.584
Structure
Crystal structureorthorhombic
Thermochemistry
Heat capacity ( C )99.1 J/mol K
Std molar entropy ( S ⦵ 298 )79.8 J/mol K
Std enthalpy of formation (Δ f H ⦵ 298 )−1648 kJ/mol
Gibbs free energy (Δ f G ⦵ )28 kJ/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references