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[mass noun] A crystalline organic acid which is present especially in unripe grapes and is used in baking powders and as a food additive.
- ‘Citric acid and tartaric acid can also be purchased locally from home wine making shops and some chemists.’
- ‘The mixture of fruit acids may include citric acid, glycollic acid, lactic acid, malic acid and tartaric acid.’
- ‘The calcium tartrate is neutralized by the addition of sulfuric acid to produce calcium sulfate and tartaric acid.’
- ‘Place the sugar, citric acid and tartaric acid in a large bowl (non-metallic is probably best).’
- ‘Many carboxylic acids are present in the foods and drinks we ingest, like malic acid (found in apples), tartaric acid (grape juice), and oxalic acid (spinach and some parts of the rhubarb plant).’
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