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L(+)-Lactic acid

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L(+)-Lactic acid Basic information
L(+)-Lactic acid Chemical Properties
  • Melting point:52-54°C
  • alpha -13.5 º (c=2.5, 1.5N NaOH)
  • Boiling point:125 °C
  • Density 1.206 g/mL at 25 °C
  • FEMA 2611 | LACTIC ACID
  • refractive index n20/D 1.427
  • Flash point:>230 °F
  • storage temp. 2-8°C
  • solubility H2O: 10 mg/mL, clear, colorless
  • pkapK at 25°, 3.79
  • form Powder/Solid
  • color White
  • optical activity[α]20/D 13.5°, c = 2.5 in 1.5 M NaOH
  • Water Solubility SOLUBLE
  • Sensitive Hygroscopic
  • Merck 14,5337
  • JECFA Number930
  • BRN 1720251
  • InChIKeyJVTAAEKCZFNVCJ-REOHCLBHSA-N
  • CAS DataBase Reference79-33-4(CAS DataBase Reference)
  • NIST Chemistry Reference(s)-2-Hydroxypropanoic acid(79-33-4)
  • EPA Substance Registry SystemL-Lactic acid (79-33-4)
Safety Information
  • Hazard Codes Xi,C
  • Risk Statements 38-41-34-36/37/38-36-35
  • Safety Statements 26-39-45-36/37/39-36
  • RIDADR 3261
  • WGK Germany 1
  • RTECS OD2800000
  • 3-10
  • TSCA Yes
  • HazardClass 8
  • PackingGroup III
  • HS Code 29181100
  • ToxicityLD50 intraperitoneal in mouse: 3194mg/kg
MSDS
L(+)-Lactic acid Usage And Synthesis
  • Chemical PropertiesCrystalline Solid
  • UsesOccurs in small quantities in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity. L-(+)-Lactic acid is also present in liver, kidney, thymus gland, human amniotic fluid, and o
  • DefinitionChEBI: An optically active form of lactic acid having (S)-configuration.
  • Purification MethodsPurify lactic acid by fractional distillation at 0.1mm pressure, followed by fractional crystallisation from diethyl ether/isopropyl ether (1:1, dried with sodium). [Borsook et al. J Biol Chem 102 449 1933.] The solvent mixture, *benzene/diethyl ether (1:1) containing 5% pet ether (b 60-80o) has also been used. [Brin Biochemical Preparations 3 61 1953, Beilstein 3 IV 633.]
L(+)-Lactic acid Preparation Products And Raw materials
L(+)-Lactic acid(79-33-4)Related Product Information
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