Lithium metasilicate
# Lithium metasilicate

Lithium metasilicate is an ionic compound with the formula $Li_2SiO_3$

## Preparation

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

## Applications

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

