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Sodium Ascorbate CAS 134-03-2
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Sodium ascorbate is a more bioavailable[citation needed] form of vitamin C that is an alternative to taking ascorbic acid as a supplement. The IUPAC Name of it is Sodium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate. Sodium ascorbate is produced by dissolving ascorbic acid in water and adding an equivalent amount of sodium bicarbonate. After cessation of effervescence, the sodium ascorbate is precipitated by the addition of isopropanol.



Item Specification Results
Characteristics White or almost white crystals crystalline powder Complies 
Identification Positive reaction Positive
Melting Point About 190°C 190.1°C
pH 2.1~2.6 2.59
Clarity Of Solution  Clear Clear
Colour Of Solution ≤BY7 <BY7
Loss On Drying  0.4% Max 0.17%
Arsenic ≤3ppm <3ppm
Lead ≤2ppm <2ppm
Copper ≤5ppm <5ppm
Heavy Metals ≤10ppm <10ppm
Iron ≤2ppm <2ppm
Mercury ≤1ppm <1ppm
Oxalic Acid ≤0.2% <0.2%
Sulphate Ash
(Residue On Ignition)
≤0.1% <0.1%
Specific Optical Rotation +20.5°~+21.5° +20.75°
Organic Volatile Impurities Pass  Pass
Assay 99.0%~100.5% 99.65%
Conclusion: Conforms to the standard of BP2010/USP32/E300/FCCV


Sodium ascorbate can be used for various food of vitamin C fortifier and in the cool and refreshing beverage and dairy products. It is widely used in ham and sausage, and keep fresh when adding to the cosmetic, it can resist wrinkle, senescence, and make the skin fair. The product has the double functions in supplying Vitamin C and strengthening the ability of absorbing Calcium.



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