Alternate Names: 2-Hydroxypropane-1,2,3-tricarboxylic acid
Description: White crystalline solid. Soluble in water, alcohol, ethyl acetate, DMSO. Insoluble in toluene.
General Information: Citric acid can be obtained as an anhydrous (water-free) form or as a monohydrate. The anhydrous form crystallizes from hot water, while the monohydrate forms when citric acid is crystallized from cold water. It is used widely as an acidifier, as a flavoring, a chelating agent, and for cleaning purposes. Recommended uses include:
Preparation of citrates, flavoring extracts, confectionary, soft drinks, effervescent salts; acidifier, dispersing agent; medicines; acidulant and antioxidant in foods, sequestering agent, water-conditioning agent and detergent builder; cleaning and polishing stainless steel and other metals; alkyd resins; mordant; removal of sulfur dioxide for smelter waste gases, abscission of citrus fruit in harvesting; cultured dairy products, buffer solutions, pharmaceutical syrups, analytical chemistry and as a laboratory reagent.