Product Name
Glycolic Acid
Category
Material of cosmetics
Description
Glycolic acid is a naturally occurring alpha hydroxy acids (or AHAs). Synonym: hydroacetic acid. Concentration: 70% (30% water). Grade: CG
Synonyms
Acetic acid, 2-hydroxy-
IUPAC Name
2-Hydroxyacetic acid
Canonical SMILES
C(C(=O)O)O
InChI
AEMRFAOFKBGASW-UHFFFAOYSA-N
InChI Key
InChI=1S/C2H4O3/c3-1-2(4)5/h3H,1H2,(H,4,5)
Melting Point
75-80 °C(lit.)
Appearance
Clear, slightly yellowish liquid, characteristic odor
Application
Peels, creams, lotions, masks, cleansers. Due to it's acidity the final product needs to be tested for safe pH. Optimal pH range from 3.5-5.0. Some over the counter products, after adding glycolic acid, will separate as a result of the low pH, and need to be stabilized.
Storage
Store light-protected at a cool and dry place
Color/Form
Colorless, translucent solid;Solid glycolic acid forms colorless, monoclinic, prismatic crystals.;Orthorhombic needles from water; leaves from diethyl ether
Composition
Glycolic acid, water
Covalently-Bonded Unit Count
1
Decomposition
Hazardous decomposition products formed under fire conditions. - Carbon oxides;When heated to decomposition it emits acrid smoke and irritating fumes.;100 °C
EC Number
201-180-5;217-693-2;247-326-1
Features And Benefits
Can reduce the appearance of fine lines, irregular pigmentation, age spots & decreases enlarged poresVery useful in exfoliating products as alpha-hydroxy acid peel, or in creams & lotions at a lower concentration for a more gentle acid-based peelWidely used to rejuvenate the skin by encouraging the shedding of old surface skin cells
Monoisotopic Mass
76.016044g/mol
Other Experimental
BP: decomposes;MP: 79.5 °C;Hygroscopic;Heat of combustion: 697.1kJ/mole; heat of solution: -11.5 kJ/mole;Light, straw-colored lliquid, odor like burnt sugar; density: 1.27; mp: 10 °C /Commercial 70% solution/;When heated to decomposition it emits acrid smoke and irritating fumes.;Henry's Law constant = 8.5X10-8 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 3.11X10-12 cu cm/molecule-sec at 25 °C (est)
Refractive Index
n20/D 1.424
Stability
Stable. Incompatible with bases, oxidizing agents and reducing agents.
Vapor Density
Relative vapor density (air = 1): 2.6
Vapor Pressure
0.02 mmHg;2.0X10-2 mm Hg at 25 °C (extrapolated)