羟基乙酸

INCI Name: Glycolic Acid and Water
Synonyms: Hydroxyacetic Acid
CAS No.: 79-14-1(Glycolic Acid), 7732-18-5 (Water)
EINECS No.: 201-180-5
Molecular Formula: C2H4O3
Molecular Weight: 76.05
Solubility: Freely soluable in water, methanol, ethanol, acetone, acetic acid and ethyl acetate; Hardly soluble in hydrocarbon solvents.
Attribute: Low odor, high water solubility, nonflammability, biodegradability; Efficient neutralization, compatibility with many cleaning additives.

Property Specification
Appearance Clear to light yellow liquid
Acid, total as Glycolic 70.0%-72.0%
Formic Acid Max. 0.1%
Ash Max. 0.1%
Sulphate(SO42-) Max. 800ppm
Chloride Max. 5ppm
Cu Max. 3ppm
Fe Max. 5ppm
Water 28.0%-30.0%

Applications:
It is widely used in cosmetics. Because of its small molecular weight and size, it has a better capability to penetrate skin. It can diminish the skin and make skin look younger by acting as a humectant to absorb moisture in air by exfoliating action to break the bonds between dead skin cells.
Stability and Storage:
It is stable stored at temperatures above 10° C (50° F). The storage area should be kept warm to maintain temperatures above 10° C (50° F) to prevent precipitation of glycolic acid crystals.
Package: 250 kg plastic drum
Shelf life: 12 months