Naatriumtsitraat

Naatriumtsitraat, also known as trisodium citrate, is the sodium salt of citric acid. Its chemical formula is Na3C6H5O7. It appears as a white, crystalline powder. Naatriumtsitraat is commonly used as a food additive, often designated by the E number E331(iii). In food, it serves multiple functions, including acting as a buffering agent, an emulsifier, and a preservative. Its ability to chelate metal ions makes it useful in preventing spoilage and maintaining texture in processed foods. It is frequently found in dairy products, jams, jellies, and carbonated beverages.

Beyond its culinary applications, naatriumtsitraat has several other uses. In medicine, it is employed as an anticoagulant to prevent blood clotting, particularly in blood donation and dialysis. It is also an active ingredient in some effervescent antacids, helping to neutralize stomach acid. In industrial settings, it can be used as a cleaning agent, particularly for removing mineral deposits. The production of naatriumtsitraat typically involves the neutralization of citric acid with a sodium source, such as sodium hydroxide or sodium carbonate. It is generally recognized as safe (GRAS) by regulatory bodies when used within established limits.