disodium carbonate
nounUK /daɪˈsəʊdiəm ˈkɑːbəneɪt/
US /daɪˈsoʊdiəm ˈkɑːrbəneɪt/
A white powder or crystal that is a kind of salt made from sodium and carbonate.
Disodium carbonate is often used in glass making and in washing powders.
OTHER MEANINGS
2. A chemical compound with the formula Na2CO3, used in industry to make glass, soap, and paper.
The factory ordered a ton of disodium carbonate for its glass furnaces.
3. A water-soluble salt that makes solutions alkaline and is used as a water softener.
Adding disodium carbonate to hard water helps the soap lather better.
4. A food additive (E500) sometimes used as an acidity regulator.
Small amounts of disodium carbonate can appear in some baked goods as a raising agent.