What Is the Formula for Sodium Citrate?

What Is the Formula for Sodium Citrate?

Sodium citrate refers to the trisodium salt of citric acid in common usage, which has the chemical formula C6H5Na3O7. There are a total of three possible sodium salts of citric acid possessing the chemical formula C6H(8-x)Na(x)O7, where x is between one and three.

Since citric acid is a triprotic acid, it can form a total of three salts with sodium: monosodium citrate, disodium citrate, and trisodium citrate. Trisodium citrate is commonly used as in food as a flavoring and preservative. It is also employed as a buffering agent in scientific research, and in the medical field as a blood anticoagulant.