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DL-Malic acid

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DL-Malic acid Basic information
DL-Malic acid Chemical Properties
  • Melting point:131-133 °C(lit.)
  • Density 1,609 g/cm3
  • vapor density 4.6 (vs air)
  • vapor pressure <0.1 mm Hg ( 20 °C)
  • FEMA 2655 | L-MALIC ACID
  • Flash point:203°C
  • solubility methanol: 0.1 g/mL, clear, colorless
  • pkapK1:3.458;pK2:5.097 (25°C)
  • Stability:Stable. Incompatible with strong oxidizing agents, strong bases, amines, alkali metals, carbonates.
  • CAS DataBase Reference617-48-1(CAS DataBase Reference)
  • EPA Substance Registry SystemButanedioic acid, hydroxy-(617-48-1)
Safety Information
MSDS
DL-Malic acid Usage And Synthesis
  • DescriptionWhite or nearly white, crystalline powder or granules having a strongly acid taste. One g dissolves in 0.8 mL of water and in 1.4 mL of alcohol. Its solutions are optically inactive. It melts at about 130°.
  • Chemical Propertieswhite crystalline powder
  • UsesDL-malic acid is primarily used in the food and beverage industry.
  • Purification MethodsCrystallise the acid from acetone, then from acetone/CCl4, or from ethyl acetate by adding pet ether (b 60-70o). Dry it at 35o under 1mm pressure to avoid formation of the anhydride. [Beilstein 3 IV 1124.]
DL-Malic acid Preparation Products And Raw materials
DL-Malic acid(617-48-1)Related Product Information
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