Supply Best quality vitamin C ascorbic acid USP CAS NO.50-81-7 99% purity LUWEI BRAND
1.Product Name:Ascorbic Acid
2.CAS NO:58-81-7
3.Application:
Vitamin C is a colorless crystal, odourless, acidic taste. Soluble in water and ethanol. Stable in dry air , and its solution is not stable. As well as, vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance.
4.Sample: With Free
5.Specification:
|
Apperance |
White or almost white,crystal or crystalline powder |
|
Identification |
Positive tests for ascorbic acid |
|
Odour |
Odourless |
|
Melting Point |
189℃-193℃ |
|
PH(IN 2% Solution) |
2.4-2.8 |
|
Specific optical rotation(solution 10%) |
+20.5°~+21.5° |
|
Clearity and color of solution |
Clear ≤BY7 |
|
Copper (%) |
0.0003 Max |
|
Heavy Metals(AS PB)(PPM) |
10 Max |
|
Mercury(PPM) |
1 Max |
|
Arsenic(PPM) |
3 Max |
|
Lead(PPM) |
2 Max |
|
Iron(%) |
0.0002 Max |
|
Zinc(%) |
0.0025 Max |
|
Oxalic Acid(%) |
0.2 Max |
|
Loss on drying(%) |
0.1 Max |
|
Sulphate Ash(%) |
0.1 Max |
|
Assy(%) |
99.0-100.5 |
|
Moisturte(%) |
0.3 Max |
1. We have good cooperate forwarder partner,every part expense is no problem, you can confirm it before shipment.
If you're afraid of the destination expense,we can do the FOB for you.
2. We can LCL gerenal cargoes and dangerous cargoes together to help you save time,
save money.
Q: Are you a factory or trading company?
A: We are the manufacture of Vitamins and Sodium Saccharin.
For other product, we as the distributor and stockist because we have a good cooperation with our upstream & downstream factory.
Q: How long have you run on export trade?
A: 15 years focus on the food additivs and Vitamins, also some Fine Chemicals and API.
Q: What's your payment terms?
A: We accept all payment TT,LC,DP,Paypal. But for first time, we only do LC or TT.
Q: What's your delivery time?
A: Usually we will arrange the shipment in 7 -15 days.
Q: How about the packing?
A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
Q: How about the validity of the products?
A: We ensure that the cargoes have 80% shelf life when it delivery.
Q: What documents you provide?
A: Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificat and Origin certificate. If your markets have any special requirements, let us know.
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