|Place of Origin:||CHINA|
|Minimum Order Quantity:||100kg|
|Packaging Details:||25kg/Carton and it can load 20MT in one 20'GP|
|Payment Terms:||T/T, L/C, Western Union, MoneyGram, D/P, D/A|
|Supply Ability:||10000 MT per year|
|Appearance:||White Crystalline Powder||Assay:||99.0% ~ 100.5%|
|Melting Point:||About 190℃||Loss On Drying:||0.4% Max|
|PH (with 5% Water Solution):||2.1 ~ 2.6||PH (with 2% Water Solution):||2.4 ~ 2.8|
Effective White Vitamin C Antioxidant Crystal Powder in Synthesis of Collagen
Ascorbic Acid is well-known for its antioxygenation. So it is called antioxidant. Most people are familiar with L-Ascorbic Acid also called Vitamin C. When it is not vitamin format, ascorbic acid was often used for film production. Ascorbic acid is easy to be oxydated, but it can prevent different cells from damaging. It must be stored in cold and dark place. Because it can oxidate the touched metals, it can not be stored in metal vessels.
|Product Name||Vitamin C|
|Synonym||L-Ascorbic Acid; Ascorbic Acid|
|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.
Packaging and storage
25kg/carton or drum or according to the requests of the customers. Carton size is 36*27*32(cm).
1. What is lead time of the shipment?
We can deliver the goods within 7-10 days after receipt of the payment.
3. Can we get free samples?
We can provide free sample within 200g which is enough for test generally and the customers undertake the FedEx freight.
Contact Person: terry