Question

What happens when quick lime is heated with silica

Answer 1

Chemical Reaction

• Quick lime represented by $\mathrm{CaO}$ when heated in silica $\left({\mathrm{SiO}}_2\right)$ it forms calcium silicate represented by the chemical formula ${\mathrm{CaSiO}}_3$.
• Reaction is represented as:

$\mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{SiO}}_2\left(\mathrm{s}\right)\stackrel{∆}{\to }{\mathrm{CaSiO}}_3\left(\mathrm{s}\right)$

Uses

Calcium silicate is generally used as a thickener, filler, lubricant, and mold release agent.