Pure Kojic Acid Powder CAS 501-30-4 Cosmetics Grade Skin Whitening 100%
Product Description
Place of Origin
|
China
|
Type
|
Syntheses Material Intermediates
|
CAS No.
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501-30-4
|
Purity
|
99%
|
Other Names
|
Kojic Acid
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MF
|
C6H6O4
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EINECS No.
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207-922-4
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Brand Name
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ZORAN
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Application
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cosmetics
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Appearance
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Powder
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Package
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25kg/drum
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Product Properties
Kojic acid crystal is prism shape, acicular, colorless. Kojic acid is soluble in water, alcohol, acetone, slightly soluble in ether, ethyl acetate, chloroform and pyridine, insoluble in most other solvent. Crystallization can be in acetone, ethyl acetate solvent , also be in the 150 to 200℃ by vacuum sublimation. The melting point of the reported in the literature is 151 to 154 ℃. 5,7-diethyl kojic acid and its derivatives respectively at 315 nm and 255nm have specific absorption peaks.
Kojic acid is unstable to light and heat, the concentration 0.5% solution of kojic acid at different pH at a temperature of 100℃ treatment for 3h or sun light shined for 5h. The results at pH 5~7 solution become yellow to tan, but did not change much at pH4.
Effect of kojic acid and ferric chloride is special red, this method can be used for kojic acid quantitative. Kojic acid can be reduced fee Lin reagent and ammoniacal silver nitrate and its molecular structure near the carbonyl has a hydroxyl group, and a variety of metal to form a salt and other hydroxyl can generate ether and ester derivatives.
Application


1.kojic acid is widely used in food production. In the pas, because of oxidation resistance, it has been used for kojic acid grease to prevent rancidity. Recent reports, kojic acid has sterilization and insect resistance, as food preservatives, preservatives, color protection agent has obvious effect, can replace chemical preservatives, which is widely used in meat dish processing color, fresh fruits and vegetables, antiseptic raw food, but also can be used as cut flowers preservation and conservation agent to extend shelf life. Kojic acid is added in the food, do not influence the taste, aroma and texture and hinder the conversion of nitrite in paired human carcinogenic nitrosamines, which hinder or inhibition of cured meat products upgrading has a very important significance. Agricultural production, kojic acid can be used as biological pesticide, used as an insecticide, and can be used as bio fertilizer, regardless of the spraying or root application, the yield of grain and vegetables income effect is remarkable.
2. as a food flavoring agent of maltol and ethyl maltol raw materials.
3.kojic acid can be used to produce cephalosporin antibiotic raw materials.
4.In addition that kojic acid is widely used in food processing, but also has good freckle, whitening beauty effect. Kojic acid and its derivatives such as acetate has certain antibacterial and on the skin without a one-time stimulus and cumulative irritation, can be used as a preservative in cosmetics and food. Can strongly absorb ultraviolet light, used lonely or compatibility with all kinds of sunscreen products such as soap and so on. Treatment and prevention and treatment of skin pigmentation such as the formation of chloasma, dosage of 1~2.5% effect is obvious. It helps to keep moisture, reduce skin wrinkles. In activities ,it can be with dandruff remover.
5. It can be used for seasoning and manufacturing raw materials of kojic acid and ethyl maltol leaves skin pigment.
Kojic Acid VS Kojic Acid Dipalmitate
Item | Kojic Acid Dipalmitate | Kojic Acid |
Molecular Formula | 618g/mol | 142g/mol |
Physical and chemical properties | White crystalline powder,melting point 92-96℃ | White to light yellow crystalline powder,melting point 150-154℃ |
Solubility | Insoluble in water,soluble in Oil and propylene glycol | Easily soluble in water,Ethanol and ethyl acetate |
PH Stability | Stable when PH 3-10 | Not stable when PH>7 |
Color stability | Does not chelate with metal ions, color is stable and does not change color | Easily chelate and discolor with metal ions, turn yellow or brown |
Other Stability | Good light stability, not easily oxidized | Light, heat, and metal ions have poor stability and are easily oxidized |
Compounding performance | Compatible with most makeup products | Incompatible with some sunscreens, preservatives |