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Glycolic acid Structure

Glycolic acid

Chemical Properties

Melting point 75-80 °C (lit.)
Boiling point 112 °C
Density  1.25 g/mL at 25 °C
vapor pressure  10.8 hPa (80 °C)
refractive index  n20/D 1.424
Flash point 112°C
storage temp.  Store below +30°C.
solubility  H2O: 0.1 g/mL, clear
form  Solution
pka 3.83(at 25℃)
color  White to off-white
PH 2 (50g/l, H2O, 20℃)
Odor at 100.00 %. odorless very mild buttery
Odor Type buttery
Viscosity 6.149mm2/s
Water Solubility  SOLUBLE
Sensitive  Hygroscopic
Merck  14,4498
BRN  1209322
Stability Stable. Incompatible with bases, oxidizing agents and reducing agents.
LogP -1.07 at 20℃
Indirect Additives used in Food Contact Substances GLYCOLIC ACID
FDA 21 CFR 175.105
CAS DataBase Reference 79-14-1(CAS DataBase Reference)
EWG's Food Scores 1-4
NCI Dictionary of Cancer Terms glycolic acid
NIST Chemistry Reference Acetic acid, hydroxy-(79-14-1)
EPA Substance Registry System Glycolic acid (79-14-1)
Pesticides Freedom of Information Act (FOIA) Glycolic Acid


Signal wordDanger
Hazard statements H314-H332
Precautionary statements P260-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C
Risk Statements  34-22-20
Safety Statements  26-36/37/39-45-23
RIDADR  UN 3265 8/PG 3
WGK Germany  1
RTECS  MC5250000
HS Code  2918 19 98
HazardClass  8
PackingGroup  II
Hazardous Substances Data 79-14-1(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1.95 g/kg, H. F. Smyth et al., J. Ind. Hyg. Toxicol. 23, 259 (1941)
NFPA 704:
3 0

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