Glycolic acid

 

Product Name:

Glycolic acid

Molecular Formula:

C₂H₄O₃

CAS No.:

79-14-1

Product Name:   Glycolic acid

Synonyms:  Hydroxyacetic acid

CAS No.:  79-14-1;                  EINECS No.: 201-180-5

TSCA： Listed                          Chemical Formula:   C₂H₄O₃

Molecular Weight: 76.05

Chemical Structure:                 

Physical and chemical properties:

colorless crystal, hygroscopic, m.p. 80 °C b.p. 100°C (decompose), flash point 300 °C (decomposed), relative density 1.49, soluble in water, ethanol and ether; 70% water solution, light yellow or colorless liquid; freezing point is 10°C

Specification:

Item	Specification
	70% liquid	Crystalline
Appearance	Colorless transparent liquid	White crystalline
Purity，%，≥	70	99.0
Color（APHA）（Pt/Co）≤	50	-
Total acid (as Glycolic acid) %	70～72	-
Free acid(as Glycolic acid)%	63～70	-
Iron ( Fe)，PPM  ≤	3	3
Heavy metal (Pb)，PPM,≤	4	4
Chloride(as Cl-),PPM，≤	20	10
Methyl aldehyde，PPM, ≤	5	3
Sulphate(SO42)，PPM,≤	50	50
Formic acid，PPM, ≤	10	-
Melting Point ℃	-	72～80

Remarks:  produced by hydrolyzing α-hydroxy nitriles under hydrolase.  Due to biological enzyme’s selectivity,  more pure product than chemical method.  when used to produce polymer, can obtain high-quality polymer.

Application:

Cosmetic industry: 
mainly used in emulsifier, penetrant, cleaning agent, softeners, lubricants, fungicides, dispersing agent, antistatic agent, hair conditioner,etc.
Chemical industry: 
mainly used in emulsifier of polymer materials, mold-release agent of plastics and rubber products, dispersion stabilizer of polymer system, oil displacement additives , petroleum deemulsifier,etc.
Machine industry: 
Plating bath additives, metal cleaning fluid additives, metal antifouling treatment agent, metal polish, soldering flux for electronic components, battery electrolyte additives,etc.
Sensitive materials industry: 
Photographic film wetting agent, emulsifier, stabilizer, antistatic agent,etc.
Medicine industry:
mainly used in synthesis of synthetic absorbable sutures’ manufacturing and raw material of medical biodegradable polymers.
Textile industry: 
mainly used in dyeing additives of wool and acrylic.

Handling and Storage:

Avoid formation of dust and aerosols.Provide appropriate exhaust ventilation at places where dust is formed. Normal measures for preventive fire protection. Keep container tightly closed in a dry and well-ventilated place.