GLYCOLIC ACID

PRODUCT IDENTIFICATION

CAS NO. 79-14-1; 259744-22-4

GLYCOLIC ACID

EINECS NO. 201-180-5
FORMULA HOCH2COOH
MOL WT. 76.05
H.S. CODE  

TOXICITY

Oral rat LD50: 1950 mg/kg
SYNONYMS Hydroxyacetic Acid; Hydroxyethanoic acid;
Glycollic acid; alpha-Hydroxyacetic acid; Kyselina glykolova; Kyselina hydroxyoctova; 2-Hydroxyacetic acid;

SMILES

 

CLASSIFICATION

alpha-HYDROXY ACID /

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white crystals
MELTING POINT 75 - 79 C (Decomposes)
BOILING POINT

 

SPECIFIC GRAVITY  
SOLUBILITY IN WATER Soluble
pH

1.7 - 2.5

VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 1; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

300 C (decomposes)

STABILITY

Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Glycolic acid is the smallest alpha-hydroxy acid (AHA) which has a hydroxyl group on the carbon atom next to the acid group. If the hydroxy group is on the second carbon next to the acid group, it is called beta-hydroxy acid. Glycolic acid  is a low mole weight compound but has dual functionality of alcohol and acid. Because of its small molecular weight and size, it has a better capability to penetrate skin. AHA is used extensively in cosmetics. It is known that it diminishes the lines on the skin and make skins look young by acting as a humectant to absorb moisture in air and by exfoliating action to break the bonds between dead skin cells, Pure glycolic acid is a white crystals; decomposes about 78 C; very soluble in water, alcohols, acetone, acetates; slightly soluble in ethyl ether; sparingly soluble in hydrocarbon solvents; polymerization occurs above 50 C. Commercially, it is available in crystal form as well as in aqueous solutions of various concentrations, usually 70 percent or less. Activating both the hydroxyl and carboxylic acid group, glycolic acid has the property to form metal complexes and can be used in cleaning applications and hard water dissolution. Aqueous solution grade is mainly used fro this cleaning application. Glycolic acid is an useful intermediate in organic synthesis including oxidation/reduction, esterification and formation of oligomers as well as long chain polymerization. Glycolic acid is naturally found in sugar beets, cane sugar, and unripe grapes. It is known that it diminishes the lines on the skin and make skins look young. Synthetic glycolic acid and its derivatives are used commercially in leather tanning and textile dyeing; as a flavouring agent and preservative in food processing, water treatment industries; pH control; and chemical intermediates as well as in household, industrial, electronics cleaning applications and cosmetics. They are also used in emulsion polymers, solvents and ink and paint additive to improve flow properties and impart gloss.
SALES SPECIFICATION

70% SOLUTION

APPEARANCE

clear to light yellow liquid
CONTENT

70.0 ± 2.0%

NaCL

7.0 ± 1.0%

Fe

10ppm max

Cu

10ppm max

99% CRYSTALS

APPEARANCE

white crystals

CONTENT

99.0% min

CHLORIDE ION

0.2% max

SULFATE

0.1% max

HEAVY METALS

10ppm max

ASH

0.2% max

DIOXYACETIC ACID

Nil

CATION

1ppm max

FE

20ppm max

CU

10ppm max

TRANSPORTATION
PACKING 250kgs in Drum / 25kgs in drum
HAZARD CLASS 8 (Packing Group: II)
UN NO. 3261
OTHER INFORMATION
Hazard Symbols: C, Risk Phrases: 22-34, Safety Phrases: 26-36/37/39-45

PRICES

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