|Place of Origin:||CHINA|
|Certification:||GMP, ISO, KOSHER, HALAL|
|Minimum Order Quantity:||1kg|
|Packaging Details:||25kg/Carton and it can load 20MT in one 20'GP|
|Supply Ability:||10000 MT per year|
|Appearance:||White Crystalline Powder||CAS No:||50-81-7|
|EINECS:||200-066-2||Other Name:||L-Ascorbic Acid|
|Assay:||99%~100.5%||Melting Point:||About 190℃|
vitamin c ascorbic acid crystals,
vitamin c powder crystals
Pure Healthy Vitamin C Crystalline Powder GMO Free As Nutritional Supplements
Vitamin C is a white crystal or crystalline powder. Its melting point is 190℃～192℃, no odour and sour taste. It is easily dissoved in water, slightly dissovled in ethanol and not dissovled in chloroform and diethyl ether. Vitamin C is a kind of soluble vitamin and has very strong reducibility. It is easy to break down when heat or in the solution. And it is easier to be oxidized in alkaline conditions. Vitamin C in food is absorbed by the upside of small intestine. Once absorbed, it will spread in to the soluble stuctures of the body.
|Product Name||Vitamin C|
|Synonym||L-Ascorbic Acid; Ascorbic Acid|
|Melting Point||190-194 °C|
|20.5 º (c=10,H2O)|
|FEMA||2109 | ASCORBIC ACID|
|Refractive index||21 ° (C=10, H2O)|
|Solubility||H2O: 50 mg/mL at 20 °C, clear, nearly colorless|
|Colour||white to slightly yellow|
|PH||1.0 - 2.5 (25℃, 176g/L in water)|
|Stability||Stable. May be weakly light or air sensitive. Incompatiblewith oxidizing agents, alkalies, iron, copper.|
1. Water Soluble Antioxidant.
2. Used as chemical reagent and Chromatographic
3. Medicine of vitamins for preventing scurvy and acute or chronic infectious diseases.
|TEST ITEMS||SPECIFICATIONS||TEST VALUE|
|Appearance||White or almost white, crystalline powder or colourless crystals||A white crystalline powder|
|Melting point||About 190℃, with decomposition||191℃|
|Infrared Absorption Spectrum||Infrared absorption spectrum accord with the reference spectrum of ascorbic acid CRS||Meets the requirements|
|pH (with 5% water solution)||2.1 ~ 2.6||2.3|
|pH (with 2% water solution)||2.4 ~ 2.8||2.5|
|Appearance of solution||Clarity : clear; Colour: ≤BY7||Clarity: clear; Colour: <BY7|
|Specific optical rotation||+20.5 ̊ ~ +21.5 ̊||+21.0 ̊|
|Loss on drying||≤0.4%||0.04%|
Impurity C: ≤0.15%
Impurity D: ≤0.15%
Unspecified impurities: ≤0.10%
Total impurities: ≤0.2%
Impurity C: undetectable
Impurity D: 0.02%
Unspecified impurities: 0.01%
Total impurites: 0.03%
|Residual solvents||Meets the requirement||Meets the requirements|
Recommendation On Use
Vitamin C can be used in wheat flour and its maximum usage is 0.2g/kg.
It also can be used in Concentrated fruit and vegetable juice and the usage should be according the requiremens of the production.
Vitamin C is used in fruit juice and carbonate beverages for prevent from going oxidative deterioration. Theoretically every 3.3mg Vitamin C can react with 1ml air. If the average assay of the air in the bottom clearance of the container is 5ml, 15-16g Vitamin C will make the oxygen assay in air be lower than critical level. And then prevent the products from discoloring and off-odor. Citric Acid can be used as synergist when Vitamin C was used as antioxidant.
Contact Person: terry