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Lactic acid  Structure

Lactic acid

Chemical Properties

Melting point 18°C
alpha  -0.05 º (c= neat 25 ºC)
Boiling point 122 °C/15 mmHg (lit.)
Density  1.209 g/mL at 25 °C (lit.)
vapor density  0.62 (vs air)
vapor pressure  19 mm of Hg (@ 20°C)
refractive index  n20/D 1.4262
FEMA  2611 | LACTIC ACID
Flash point >230 °F
storage temp.  2-8°C
solubility  Miscible with water and with ethanol (96 per cent).
pka 3.08(at 100℃)
form  syrup
color  Colorless to yellow
Specific Gravity 1.209
PH 3.51(1 mM solution);2.96(10 mM solution);2.44(100 mM solution);
Odor at 100.00 %. odorless
Odor Type odorless
Water Solubility  SOLUBLE
Merck  14,5336
JECFA Number 930
BRN  1209341
Dielectric constant 22.0(16℃)
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey JVTAAEKCZFNVCJ-UHFFFAOYSA-N
LogP -0.72
CAS DataBase Reference 50-21-5(CAS DataBase Reference)
NIST Chemistry Reference Propanoic acid, 2-hydroxy-(50-21-5)
EPA Substance Registry System Lactic acid (50-21-5)

Safety Information

Hazard Codes  Xi,C
Risk Statements  38-41-34-37/38
Safety Statements  26-39-45-36/37/39
RIDADR  3265
WGK Germany  2
RTECS  OD2800000
3
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29181100
Hazardous Substances Data 50-21-5(Hazardous Substances Data)

MSDS

Usage And Synthesis

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