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Vitamin C Ascorbic Acid 50-81-7
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Vitamin C, also known as ascorbic acid and l-ascorbic acid, is a vitamin found in various foods and sold as a dietary supplement. It is used to prevent and treat scurvy. Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters.It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant.
Function
It applies mainly to production of various medicines as clinically important material for supplementary cure practice in different sectors. Being food additives, it acts as superior and reliable agent in nutrition, antiseptic and flour processing aspects. It also helps enhance the immune system of animals as being served in feed additives.
Specification
Items | Specification |
Characteristics | White or almost white,Crystalline powder or colourless crystals |
Identification | Corresponds |
Melting Point | 189°C ~ 193°C |
PH (5%,W/V) | 2.1-2.6 |
PH (2%,W/V) | 2.4-2.8 |
Specific Optical Rotation | +20.5° ~ +21.5° |
Apperance of Solution | Clarity: Clear; Colour: ≤BY7 |
Heavy Metals | ≤10ppm |
Copper | ≤5 ppm |
Iron | ≤2 ppm |
Mercury | <1 ppm |
Arsenic | ≤3 ppm |
Cadmium | <1 ppm |
Lead | <2 ppm |
Loss of Drying | ≤0.4% |
Sulphate Ash | ≤0.1% |
Oxalic Acid (Impurity E) | ≤0.2% |
Related substances | Impurity C: ≤0.15% |
Impurity D: ≤0.15% | |
Unspecified impurities: ≤0.10% | |
Total impurities: ≤0.20% | |
Residual solvents | Meets the requirements |
Assay | 99.0%-100.5% |
By Express(Fedex,TNT,DHL,EMS) | By Air | By Sea |
Suitable for under 50kg | Suitable for more than 50kg | Suitable for more than 500kg |
Fast: 3-7 days | Fast: 3-7 days | Slow: 3-10 days |
High cost | Medium cost | Low cost |
Door to door service | Port to port service | Port to port service |
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