noun[mass noun] Chemistry
A crystalline acid obtained e.g. by treating phosphates with sulphuric acid, used in fertilizer and soap manufacture and food processing.
- If the alcohol (with the exception of methanol) is heated with aluminum oxide, phosphoric acid or excess sulphuric acid, an alkene is formed along with a molecule of water.
- The pair had been polishing off rough edges of metal from the inside of the stainless steel cylinder using an electro-plating process of pumping electricity through a solution of sulphuric acid and phosphoric acid.
- To give food a light texture, and/or control its acidity/alkalinity, yeast, sodium bicarbonate, citric acid, fumaric acid, phosphoric acid, lactic acid, and tartrates may be added.
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