Sodium ascorbate

Structural formula
General
Surname	Sodium ascorbate
other names	Soda ascorbate Monosodium ascorbate E  301
Molecular formula	C 6 H 7 NaO 6
Brief description	white odorless solid
External identifiers / databases
CAS number 134-03-2 EC number 205-126-1 ECHA InfoCard 100.004.661 PubChem 23667548 Wikidata Q424551
properties
Molar mass	198.11 g mol −1
Physical state	firmly
Melting point	220 ° C (decomposition)
solubility	soluble in water and ethanol
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sodium ascorbate is the sodium salt of ascorbic acid .

properties

Sodium ascorbate is a white, odorless solid that turns darker in color when exposed to light.

presentation

Sodium ascorbate is industrially synthesized from ascorbic acid, which is obtained by the Reichstein synthesis or possibly using genetically modified organisms .

use

Sodium ascorbate is used as an antioxidant , flour treatment agent and as a color stabilizer . It is used to prevent freshly cut fruit from turning brown . It is also used in meat in combination with nitrite curing salt in order to keep the red color of the meat. It is often added to canned fruit and vegetables, fruit juices and nectars, jam, jelly, marmalade, meat and sausage products, as well as bread, baking mixes, beer and wine.

It is generally approved in the EU as a food additive with the number E 301 without maximum quantity restrictions for all foods.

It is also commonly used to increase vitamin C levels. If this is the only reason why sodium ascorbate is used, it can be declared as vitamin C, otherwise it is designated as "E 301" or "sodium ascorbate".

Individual evidence

1. ↑ Entry on E 301: Sodium ascorbate in the European database for food additives, accessed on June 27, 2020.
2. ↑ ^{a b c} FAO: SODIUM ASCORBATE (PDF; 30 kB)
3. ↑ ^{a b c} Data sheet (+) - Sodium L-ascorbate, crystalline, ≥98% from Sigma-Aldrich , accessed on November 29, 2011 ( PDF ).
4. ↑ transGEN database: Vitamin C (ascorbic acid, E 300)