| effervescent potassium citrate | A mixture of potassium citrate, citric acid, sodium bicarbonate, and tartaric acid; used as a gastric antacid and urinary alkaliser. (05 Mar 2000) |
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| effervescent salts | Preparations made by adding sodium bicarbonate and tartaric and citric acids to the active salt; when thrown into water the acids break up the sodium bicarbonate, setting free the carbonic acid gas. (05 Mar 2000) |
| effervescent sodium phosphate | Exsiccated sodium phosphate 200, sodium bicarbonate 477, tartaric acid 252, and citric acid 162, mixed and passed through a sieve to make a granular salt. (05 Mar 2000) |