sodium carbonate decahydrate, efflorescent crystals used for washing, especially textiles. It is a compound of sodium (q.v.).[1 related articles] Found on http://www.britannica.com/eb/a-z/w/11
Synonym for sodium carbonate ... Na2CO3-10H2O;used in the treatment of scaly skin diseases; otherwise rarely used in medicine because of its irritant action. ... Synonym: sal soda, soda, washing soda. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Substance added to washing water to `soften` hard water. The calcium and magnesium ions in hard water react with the carbonate ions from the sodium carbonate and a precipitate of calcium carbonate results. Na2CO3(aq) + CaSO4(aq) ® CaCO3(s)... Found on https://www.encyclo.co.uk/local/21221