What is Sodium Citrate? Na 3 C 6 H 5 O 7 is sodium salt of citrate which has an alkalinizing activity with the chemical name Sodium Citrate.. Sodium Citrate is also called Trisodium Citrate or Citrosodine or Natrocitral.It is widely used as a food preservative, for alkalization of urine to prevent kidney stones, as an anticoagulant for stored blood, and buffer. .

what is sodium citrate used for