Sodium ascorbate is an organic sodium salt resulting from the replacement of the proton from the 3-hydroxy group of ascorbic acid by a sodium ion. It has a role as a coenzyme, a reducing agent, a flour treatment agent, a plant metabolite, a human metabolite, a food antioxidant and a Daphnia magna metabolite. It is a vitamin C and an organic sodium salt. It contains a L-ascorbate.
Solubility greater than or equal to 100 mg/mL at 63 °F (NTP, 1992)
Formula
C6H7NaO6
Mol. Weight
198.11
CAS #
134-03-2
Form
Powder
State
Minute crystals or white powder. pH of aqueous solutions 5.6 to 7.0 or even higher (a 10% solution, made from a commercial grade, may have a pH of 7.4 to 7.7). (NTP, 1992)
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Neutralizes Free Radicals
Traditional Use
Vitamin C was identified in the 1930s; sodium ascorbate is a stable, water-soluble form developed in the mid-20th century as an antioxidant ingredient in skincare. Used to provide vitamin C's brightening and anti-aging benefits in cosmetic formulations.