Lithium metasilicate

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Lithium metasilicate
Names
IUPAC name
Lithium metasilicate
Identifiers
10102-24-6
ChemSpider 162106396
EC Number 233-270-5
Jmol 3D model Interactive image
PubChem 66243
Properties
Li2SiO3
Molar mass 89.566 g/mol
Appearance colorless crystals
Density 2.52 g/cm3
Melting point 1,201 °C (2,194 °F; 1,474 K)
insoluble
1.584
Structure
orthorhombic
Thermochemistry
99.1 J/mol K
79.8 J/mol K
-1648 kJ/mol
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

Lithium metasilicate is an ionic compound with the formula Li2SiO3

Preparation[edit]

Lithium metasilicate is prepared by the reaction of lithium carbonate and silicon dioxide at temperatures between 515-565°C.

Applications[edit]

The melting of lithium metasilicate is used for the calibration of thermocouples.

References[edit]