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Sodium erythorbate

Identification test Content analysis Toxicity Usage limit Standard for Allowable Maximum Residue and Maximal amount of Food Additives Chemical properties Uses Preparation
Sodium erythorbate
Sodium erythorbate structure
Chemical Name:
Sodium erythorbate
Ery;isona;erbitn;ozoban;eribaten;mercate20;isoascorbic;neo-cebitate;kanghuaixuesuanna;SODIUM ERYTHORBATE
Molecular Formula:
Formula Weight:
MOL File:

Sodium erythorbate Properties

Melting point:
154-164°C (decomposes)
97 º (c=1,DMF)
refractive index 
97 ° (C=10, H2O)
SCOGS (Select Committee on GRAS Substances)
Sodium erythorbate (sodium D-isoascorbate)
Substances Added to Food (formerly EAFUS)
CAS DataBase Reference
6381-77-7(CAS DataBase Reference)
EWG's Food Scores
EPA Substance Registry System
Sodium erythorbate (6381-77-7)
  • Risk and Safety Statements
RTECS  MP8910000

Sodium erythorbate price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical I0232 Sodium Isoascorbate Monohydrate >98.0%(T) 6381-77-7 25g $27 2020-06-24 Buy
TCI Chemical I0232 Sodium Isoascorbate Monohydrate >98.0%(T) 6381-77-7 500g $84 2020-06-24 Buy

Sodium erythorbate Chemical Properties,Uses,Production

Identification test

Solubility: it is easily soluble in water; extremely difficult to dissolve in ethanol. It can be measured according to the OT-42 method.
Take 2 ml of 2.0% sample solution; add 2 mL of water, 0.1 g sodium bicarbonate and 0.02 g of ferrous sulfate. Stand after shaking. At this time, it should exhibit dark purple color while addition of 5 mL of dilute sulfuric acid test solution (TS-241) will make the color disappeared.
The burning residue of the sample was dissolved by the water and subject to (TS-2) acidification, and if necessary, subject to filtration. Addition of uranyl zinc acetate test solution (TS-253) should produce yellow crystalline precipitate.
The aqueous solution of the sample allows the discoloration of the 2, 6-dichloroindophenol test solution (TS-84).

Content analysis

0.400 g of the sample pre-dried in a vacuum desiccator (sulfuric acid) for 24 hours was dissolved in a mixed solution consisting of 100 ml of de-carbonated water and 25 ml of dilute sulfuric acid solution (TS-241). Add a few drops of starch solution (TS-235) and immediately titrate with 0.1mol/L iodine solution titration. Each mL of 0.1 mol/L iodine solution was equivalent to 10.807 mg of sodium erythorbate (C6H7O6Na? H2O).


ADI is not subject to any special provision (FAO/WHO, 2001).
LD50} 15.3 g/kg (mouse, orally).

Usage limit

GB 2760-2001 (g/kg): beer 0.04; wine, fruit and vegetable juice drinks, 0.15. Canned fruits and vegetables, canned meat, jam, frozen fish, 1.0 (all based on ascorbic acid).
FAO/WHO (1984): luncheon meat, boiled forelegs, cooked ham, cooked minced meat, 500mg/kg (single usage amount or combined amount with ascorbic acid, ascorbic acid and its salts in ascorbic acid).

Standard for Allowable Maximum Residue and Maximal amount of Food Additives

Name of additive
Food allowed to use it as additives
Function of additives
Maximal allowable usage (g/kg)
Sodium Isoascorbate
Eight-treasure porridge
Sodium Isoascorbate
Soy sauce, vinegar, sauce, liquid compound seasoning
Sodium Isoascorbate
Tea and coffee drinks

Chemical properties

It appears as white to yellow-white crystalline powder or granules. It is almost odorless, slightly salty. In the dry state, it is quite stable in the air. However in solution, it will deteriorate in the presence of air, trace metals, heat and light. The melting point is above 200 ℃ (decomposition). It is soluble in water (17g/100m1) but almost insoluble in ethanol. The pH of the 2% aqueous solution was 5.5 to 8.0.


It is antioxidant and antiseptic.
Sodium Isoascorbate is a water-soluble antioxidant which is widely used in China and abroad. Its antioxidant property is significantly stronger than vitamin C. Its price is cheap as well. China provides that it can be used for all types of canned, jam and frozen fish with the maximum usage amount of 1.0g/kg; It can be used for meat with the maximum usage amount being 0.5g/kg (to ascorbic acid dollars); can be used for wine and fruit juice drinks with the largest usage amount being 0.15g/kg; can also be used for beer with the maximum usage amount being 0.04g/kg.
For food antioxidants, preservatives and coloring agent


It is produced through using D-glucose fermentation of Pseudomonas fluorescens Kl005 or Arthrobacter globiformis K1022 to produce 2-keto-D-gluconic acid (or calcium salt), followed by being esterified, transformed and refined. The composition of the fermentation medium is: glucose: 18; yeast extract 0.3; K2HPO4 • 3H2O: 0.05; KH2PO4: 0.05; MgSO4 • 7H2O: 0.025,;CaCO:34.5. The fermentation temperature is controlled at 30~35 ℃, the fermentation period is 30h, and the fermentation conversion ratio (%) is 79.9%. The fermentation broth is supplemented with sulfate and activated carbon for acidification and decoloring, followed by pressurized filtrate to obtain the clean liquid with a yield of 96.6%.
The purified fermentation broth was concentrated by decompression, and methanol and sulfuric acid were added for refluxed esterification of 5h, followed by frozen and centrifuged filtering to obtain methyl ester with a yield of 82.1%. The methyl ester was transformed with basic methanol solution under refluxing conditions, and the product was further frozen and crystallized to dryness to obtain the crude product of D-isoascorbic acid. The conversion yield was 87.3%, and it was dissolved in hot water and decolorized with activated carbon. The filtrate is pressurized filtrated and the supernatant liquid is frozen, crystallized, centrifugalized, washed and vacuum dried to obtain finished product.
The mother liquid is recovered and the yield is 88.0%.

Chemical Properties



Antioxidant and preservative.


Sodium Erythorbate is an antioxidant that is the sodium salt of erythorbic acid. in the dry crystal state it is nonreactive, but in water solution it readily reacts with atmospheric oxygen and other oxidiz- ing agents, a property that makes it valuable as an antioxidant. during preparation, a minimal amount of air should be incorpo- rated and it should be stored at a cool temperature. it has a solubility of 15 g in 100 ml of water at 25°c. on a comparative basis, 1.09 parts of sodium erythorbate are equivalent to 1 part of sodium ascor- bate; 1.23 parts of sodium erythorbate are equivalent to 1 part ery- thorbic acid. it functions to control oxidative color and flavor deterioration in a variety of foods. in meat curing, it controls and accelerates the nitrite curing reaction and maintains the color brightness. it is used in frankfurters, bologna, and cured meats and is occasionally used in beverages, baked goods, and potato salad. it is also termed sodium isoascorbate.

General Description

Almost odorless fluffy, white to off-white crystalline powder. Used as an antioxidant and preservative.

Air & Water Reactions

Water soluble.

Reactivity Profile

Sodium erythorbate may be sensitive to prolonged exposure to light. Incompatible with strong oxidizing agents .

Fire Hazard

Flash point data for Sodium erythorbate are not available; however, Sodium erythorbate is probably combustible.

Sodium erythorbate Preparation Products And Raw materials

Raw materials

Preparation Products

Sodium erythorbate Suppliers

Global( 259)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21842 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22625 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 2754 55
career henan chemical co
+86-371-86658258 CHINA 30039 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28231 58
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 10132 58
(323) 306-3136
(626) 453-0409 United States 8406 58
hdzhl biotechnology co., ltd
86-13032617415 CHINA 1277 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114 CHINA 6371 58
BOC Sciences
1-631-619-7922 1-631-619-7922
1-631-614-7828 United States 20039 58

View Lastest Price from Sodium erythorbate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-01-13 D-sodium erythorbate
US $0.00-0.00 / KG 1KG 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
2018-08-04 Sodium erythorbate
US $3100.00-3000.00 / KG 1000KG 98% 1000T career henan chemical co

Sodium erythorbate Spectrum

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