Payment & Shipping Terms:
|Heavy Metal:||≤10ppm||Transportation::||According The Quantity|
|DeliveryTime::||In Stock||Port::||Port Of China|
1.product name: ascorbic acid, vitamin c
2.cas no: 50-81-7
4.appearance: white or almost white crystalline powder
5.hs code: 2936270010
vitamin c is widely used in many fields such as food , beverage, breeding and forage additives. its main functions reflected in following 5 aspects:
1)keep food, fruits and beverage fresh and prevent them from producing unpleasant smell.
2)prevent formation of nitrous amine from nitrous acid in meat products.
3)improve dough quality and make baked food expand to its maximum.
4)compensate the vitamin c losses of beverage ,fruits and vegetables during processing rocedures.
5)used as nutritional element in additives,feed additives.
|item:||raw material vitamin c|
|appearence:||white fine powder|
|packaging:||foli bag/ paper drum/carton|
|delivery time:||1-3 working days|
|payment:||t/t west union|
|shelf time:||2 year|
|storage:||keep dry and keep away from sunlight|
|main export country||the amercias, europe, southeast asia|
|product name||ascorbic acid ( vitamin c )|
|shelf life||3 years|
|characteristics||white or almost white crystals crystalline powder|
|melting point||about 190°c|
|clarity of solution||clear|
|colour of solution||≤by7|
|loss of drying||≤0.4%|
|sulphate ash(residue on ignition)||≤0.1%|
|specific optical rotation||+20.5°–+21.5°|
|organic volatile impurities||pass|
|residual solvents||methanol:≤3000 ppm|
|total plate count||≤1000 cfu/g|
|yeasts& molds||≤100 cfu/g|
|escherichia coli||negative in 1g|
|conclusion||the above-mentioned product conforms to bp2010/usp32|
known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.
1, high quality with competitive price:
1) standard:bp/usp/ep/enterprise standard
2) all purity≥99%
3) we are manufacturer and can provide high quality products with factory price.
2, fast and safe delivery
1) parcel can be sent out in 24 hours after payment.tracking number available
2) secure and discreet shipment.various transportation methods for your choice.
3) customs pass rate ≥99%
4) we have our own agent/remailer/distributor who can help us ship our products very fast and safe,
and we have stock in there for transferring.
3,we have clients throughout the world.
1) professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire.
2) market feedback and goods feedback will be appreciated, meeting customers's requirement is our responsibility.
3) high quality,competitive price,fast delivery ,first-class service gain the trust and praise from the customers.
vitamin c is a white monoclinic crystal or crystalline powder with melting point on 190 ℃ -192 ℃, no smell, sour, yellowish color after long time standing. the product is easily soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform. the aqueous solution is acidic. 5% (w / v) aqueous solution ph2.1-2.6 (w / v), the rotation of aqueous solution is +20.5 ~ +21.5.
coa of vitamin c/ ascorbic acid pharm grade
|appearance||white or almost white crystal or crystalline powder|
|melting point||191 °c ~ 192°c|
|ph (5%, w/v)||2.2 ~ 2.5|
|ph (2%,w/v)||2.4 ~ 2.8|
|specific optical rotation||+20.5° ~ +21.5°|
|clarity of solution||clear|
|assay (as c 6h 8o6, %)||99.0 ~ 100.5|
|loss on drying||≤0.1%|
|sulphated ash||≤ 0.1%|
|residual solvents (as methanol)||≤ 500 mg/kg|
|total plate count (cfu/g)||≤ 1000|
|yeasts & molds (cfu/g)||≤ 100|
|staphylococcus aureus/ 25g||absence