L-Ascorbic Acid
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L-Ascorbic Acid

L-Ascorbic Acid is a naturally occurring organic compound with antioxidant properties. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions.

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Product Description

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China L-Ascorbic Acid/L-Ascorbate/Vitamin C Factory


L-Ascorbic acid/L-Ascorbate/Vitamin C CAS:50-81-7


L-Ascorbic acid Chemical Properties

MF:C6H8O6

MW:176.12

EINECS:200-066-2

Melting point:190-194°C (dec.)

Alpha:20.5º(c=10,h2o)

Boiling point:227.71°c (rough estimate)

Density:1,65 g/cm3

Fema:2109 | ascorbic acid

Refractive index:21°(c=10, h2o)

Solubilityh2o: 50 mg/ml at 20°c, clear, nearly colorless

Pka:4.04, 11.7(at 25℃)

PH:1.0 - 2.5 (25℃, 176g/L in water)

optical activity:[α]25/D 19.0 to 23.0°, c = 10% in H2O

Water Solubility:333 g/L (20ºC)


L-Ascorbic acid/L-Ascorbate/Vitamin C CAS:50-81-7 Introduction:

Vitamin C, also known as ascorbic acid and L-ascorbic acid, is a vitamin found in food and used as a dietary supplement. The disease scurvy is prevented and treated with vitamin C containing foods or dietary supplements. Vitamin C is generally well tolerated. Large doses may cause gastrointestinal discomfort, headache, trouble sleeping, and flushing of the skin. Normally doses are safe during pregnancy.


L-Ascorbic acid/L-Ascorbate/Vitamin C CAS:50-81-7 Specification:

Specification of Ascorbic Acid

Items

Standards

Characteristics

White or almost white, crystalline powder or colorless crystals

Melting point

189ºC~193ºC

Special optical rotation

20.5º~+21.5º

Apperance of solution

Solution S is clear and not more intensely cloured than reference solution BY7

Heavy metals

≤10ppm

Iron

10ppm

Assay

99.0%~100.5%

Copper

≤5ppm

Iron

≤2ppm

Mercury

≤1ppm

Arsenic 

≤3ppm

Lead

≤2ppm

Oxalic acid(impurity E)

≤0.2%

Loss on drying

≤0.4%

Sulphated ash

≤0.1%

PH(2%,W/V)

2.4~2.8

Methanol

≤3000ppm

TAMC

≤1000cfu/g

TYMC

≤100cfu/g

E. Coli

Absence

Conclusion

The product conforms to the standard of BP2014/EP8/USP38/E300/FCC7


L-Ascorbic acid/L-Ascorbate/Vitamin C CAS:50-81-7 Function:

1. Promote the biosynthesis of collagen, which will help tissue wound healing faster; promote the synthesis of collagen to prevent bleeding gums; promote the growth of teeth and bones to prevent bleeding gums, prevent joint pain, low back pain.

2. Promote the metabolism of tyrosine and tryptophan in amino acids, prolong the life of the body; enhance the body's resistance to stress and immunity to the external environment.

3. To improve the use of iron, calcium and folic acid; improve fat and lipid metabolism, especially cholesterol, prevent cardiovascular disease.

4. Insist on taking vitamin C on time, can reduce the skin melanin, thereby reducing dark spots and freckles, the skin white.


L-Ascorbic acid/L-Ascorbate/Vitamin C CAS:50-81-7 Application:

1.Cosmetics

1) L-Vitamin C inhibits tyrosinase and reduces melanin, and diminishes the formed spots to inhibit melanin formation.

2) Promote collagen synthesis to reduce fine lines.

3) L-Vitamin C can effectively neutralize free radicals, improve skin texture, restore damaged skin, and make skin firm and elastic.

4) Promote skin metabolism and accelerate skin rejuvenation.


2. Medical

Vitamin C is mainly used for the prevention or treatment of scurvy in medicine, as well as for diseases such as dental caries, gingival abscess, anemia, and growth and development caused by anti-hyperacid deficiency.


3. Food additives

Vitamin C can be used for sandwich hard candy, and the amount used is 2000-6000mg/kg;

The amount of use in high-iron cereals and their products is 800-1000 mg/kg;

The amount used in infant food is 300-500 mg/kg;

The amount used in canned fruit is 200-400 mg/kg;

The amount used in drinks and milk drinks is 120-240 mg/kg;

The amount used in the puree is 50 to 100 mg/kg.




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