product name :
vitamin c
overview
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cas no :
50-81-7
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einecs no :
200-066-2
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hs code :
29362700
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grade standard :
bp/usp 99%min
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appearance :
white crystalline powder
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packaging details :
25kg/ctn
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application :
vitamin c used for treatment of scurvy, the prevention of gingival recession, bleeding, prevent atherosclerosis, antioxidants, anemia, cancer, protects cells, detoxification, protect the liver, improve human the immune system, improve the body's emergency response capacity.
product description
about vitamin c
the main role of vitamin c is to improve immunity, prevent cancer, heart disease, stroke, protect teeth and gums, etc. in addition, the e300 can also insist on taking the time to reduce skin hyperpigmentation, thereby reducing dark spots and freckles, white skin. e300-rich foods are cauliflower, green peppers, oranges, grape juice, tomatoes, etc., can be said in all the vegetables, fruits, e300 content is a lot. u.s. experts believe that the optimum amount of e300 per person per day should be 200 to 300 mg, the lowest of not less than 60 mg of e300, half a cup (about a hundred ml) fresh orange juice is sufficient to satisfy the minimum amount.
item | specification |
name | vitamin c |
appearance | white crystalline powder |
fomula | c6h8o6 |
identification | positive reaction |
melting point | 190 ºc |
ph value(with 2% water solution) | 2.4~2.8 |
ph value(with 5% water solution) | 2.1~2.6 |
clarity of solution | clear |
colour of solution | ≤by7 |
copper | <5 ppm |
heavy metal | ≤10 ppm |
mercury | ≤1 ppm |
lead | ≤2 ppm |
arsenic | ≤3 ppm |
cadmium | ≤1 ppm |
oxalic acid | ≤0.2% |
iron | ≤2 ppm |
impurity e | ≤0.2% |
loss on drying | ≤0.4% |
sulphated ash(residue on ignition) | <0.1% |
specific optical rotation | 20.5 -- 21.5 º |
residual solvents | pass |
assay | 99.0 - 100.5% |
vitamin c physiological functions
1 to promote collagen biosynthesis. e300 conducive to faster healing of wound tissue.
8, strong connective tissue.
9, to promote collagen synthesis and prevent bleeding gums.
others
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