Glycolic Acid

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  • 79-14-1 / 7732-18-5
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Catalog Number
ACM79141
Product Name
Glycolic Acid
Structure
Structure
CAS
79-14-1 / 7732-18-5
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
Molecular Weight
76.05
Molecular Formula
C2H4O3
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)
Boiling Point
112 °C
Melting Point
75-80 °C(lit.)
Flash Point
128.7ºC
Density
1.25g/ml
Solubility
Water-soluble
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
Complexity
40.2
Composition
Glycolic acid, water
Corrosivity
Corrosive
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
Exact Mass
76.016044g/mol
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
Formal Charge
0
Hazard Codes
C
H-Bond Acceptor
3
H-Bond Donor
2
Heavy Atom Count
5
HS Code
1518004000
ICSC Number
1537
LogP
-0.93670
Monoisotopic Mass
76.016044g/mol
NSC Number
166
Odor
Odorless
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)
Physical State
Solid
PSA
57.53
Refractive Index
n20/D 1.424
RIDADR
UN 3265 8/PG 3
Rotatable Bond Count
1
RTECS Number
MC5250000
Stability
Stable. Incompatible with bases, oxidizing agents and reducing agents.
UNII
0WT12SX38S
UN Number
3261
Vapor Density
Relative vapor density (air = 1): 2.6
Vapor Pressure
0.02 mmHg;2.0X10-2 mm Hg at 25 °C (extrapolated)
WGK Germany
1
XLogP3
-1.1
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