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Lactic acid is an organic compoond wi the formula CH3CH(OH)CO2H.

Lactic acid
Skeletal formula o L-lactic acid
L-Lactic acid
Baw-an-stick model o L-lactic acid
Racemic lactic acid sample.jpg
DL-Lactic acid
Names
IUPAC name
2-Hydroxypropanoic acid
Ither names
Milk acid
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.017
E nummer E270 (preservatives)
UNII
Properties
C3H6O3
Molar mass 90.07948
Meltin pynt L: 53 °C
D: 53 °C
D/L: 16.8 °C
Bylin pynt 122 °C (252 °F; 395 K) @ 12 mmHg
Acidity (pKa) 3.86,[1] 15.1[2]
Thermochemistry
Std enthalpy o
combustion
ΔcHo298
1361.9 kJ/mol, 325.5 kcal/mol, 15.1 kJ/g, 3.61 kcal/g
Pharmacology
G01AD01 (WHO) QP53AG02 (WHO)
Hazards
GHS pictograms GHS-pictogram-acid.svg[3]
GHS hazard statements H315, H318[3]
GHS precautionary statements P280, P305+351+338[3]
Relatit compoonds
Ither anions
lactate
acetic acid
glycolic acid
propionic acid
3-hydroxypropanoic acid
malonic acid
butyric acid
hydroxybutyric acid
Relatit compoonds
1-propanol
2-propanol
propionaldehyde
acrolein
sodium lactate
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

ReferencesEedit

  1. Dawson, R. M. C. et al., Data for Biochemical Research, Oxford, Clarendon Press, 1959.
  2. Silva et al., Biometals, 22:771-778, 2009.
  3. 3.0 3.1 3.2 Sigma-Aldrich Co., DL-Lactic acid. Retrieved on 2013-07-20.