calcinedsoda

noun
UK /ˈkælsaɪnd ˈsəʊdə/
US /ˈkælsaɪnd ˈsoʊdə/

A white powder made by heating baking soda, used to make glass and soap.

The factory uses calcined soda to make clear glass bottles.


OTHER MEANINGS

2. A chemical used to soften water in laundry.

She added calcined soda to the wash to soften the hard water.

3. An industrial material for making soap and paper.

Calcined soda is a key ingredient in many soap factories.

4. A substance formed when sodium compounds are strongly heated.

The lab produced calcined soda by heating the powder in a furnace.