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Cyanoacetic acid

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Cyanoacetic acid Basic information
Cyanoacetic acid Chemical Properties
  • Melting point:65 °C
  • Boiling point:108 °C0.15 mm Hg(lit.)
  • Density 1.3676 (rough estimate)
  • vapor pressure 0.1 mm Hg ( 100 °C)
  • refractive index 1.3764 (estimate)
  • Flash point:226 °F
  • storage temp. Store below +30°C.
  • solubility H2O: soluble50mg/mL, clear, colorless to very faintly yellow
  • pka2.45(at 25℃)
  • form Adhering Crystalline Solid
  • color White to light beige
  • PH1.6 (50g/l, H2O, 20℃)
  • Water Solubility 1000 g/L (20 ºC)
  • Sensitive Hygroscopic
  • Merck 14,2689
  • BRN 506325
  • InChIKeyMLIREBYILWEBDM-UHFFFAOYSA-N
  • CAS DataBase Reference372-09-8(CAS DataBase Reference)
  • NIST Chemistry ReferenceAcetic acid, cyano-(372-09-8)
  • EPA Substance Registry SystemCyanoacetic acid (372-09-8)
Safety Information
MSDS
Cyanoacetic acid Usage And Synthesis
  • Chemical Propertieswhite to light beige adhering crystalline solid
  • UsesCyanoacetic acid was used in the synthesis of N-piperidine-cyanacetamide and N-morpholyl-cyanacetamide. It was also used in the preparation of a panchromatic dye for dye-sensitized solar cells.
  • UsesSynthesis of intermediates; manufacture of barbital.
  • DefinitionChEBI: A monocarboxylic acid that consists of acetic acid bearing a cyano substituent.
  • General DescriptionYellow-brown liquid with an unpleasant odor. Sinks and mixes with water.
  • Air & Water ReactionsWater soluble.
  • Reactivity ProfileWhite, moderately toxic solid, combustible. When heated to decomposition Cyanoacetic acid emits toxic fumes of nitrile and oxides of nitrogen. A stirred mixture with furfuryl alcohol exploded violently upon heating [MCA Case History No 858].
  • Health HazardContact irritates eyes and may irritate skin.
  • Fire HazardSpecial Hazards of Combustion Products: Toxic oxides of nitrogen and toxic and flammable acetonitrile vapors may form in fire.
  • Purification MethodsRecrystallise the acid to constant melting point from *benzene/acetone (2:3), and dry it over silica gel. [Beilstein 2 H 583, 2 I 253, 2 II 530, 2 III 1626, 2 IV 1888.]
Cyanoacetic acid Preparation Products And Raw materials
Cyanoacetic acid(372-09-8)Related Product Information
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