Product Name
Glycolic Acid, Crystal, Reagent
Description
DryPowder; Liquid; PelletsLargeCrystals;Solid;COLOURLESS HYGROSCOPIC CRYSTALS.
IUPAC Name
2-hydroxyacetic acid
Molecular Weight
76.05g/mol
Molecular Formula
C2H4O3;HOCH2COOH;C2H4O3
Canonical SMILES
C(C(=O)O)O
InChI
InChI=1S/C2H4O3/c3-1-2(4)5/h3H,1H2,(H,4,5)
InChI Key
AEMRFAOFKBGASW-UHFFFAOYSA-N
Melting Point
79.5 °C;78-80 °C (alpha-modification); 63 °C (beta-modification, metastable);75-80°C;80 °C
Density
1.49 at 25 °C/4 °C;Relative density (water = 1): 1.49
Solubility
In water, 1X10+6 mg/L at 25 °C (est);Soluble in ethanol, ethyl ether;Soluble in methanol, acetone, acetic acid;Solubility in water: very good
Color/Form
Colorless, translucent solid;Solid glycolic acid forms colorless, monoclinic, prismatic crystals.;Orthorhombic needles from water; leaves from diethyl ether
Covalently-Bonded Unit Count
1
EC Number
201-180-5;217-693-2;247-326-1
Log P
-1.11 (LogP);log Kow = -1.11;-1.11;-1.11
MeSH Entry Terms
glycolate;glycolic acid;glycolic acid, 1-(14)C-labeled;glycolic acid, 2-(14)C-labeled;glycolic acid, calcium salt;glycolic acid, monoammonium salt;glycolic acid, monolithium salt;glycolic acid, monopotassium salt;glycolic acid, monosodium salt;glycolic acid, potassium salt;hydroxyacetic acid;potassium glycolate
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)
Stability
Stable under recommended storage conditions.
Vapor Density
Relative vapor density (air = 1): 2.6
Vapor Pressure
0.02 mmHg;2.0X10-2 mm Hg at 25 °C (extrapolated)