Jiaozhou Fine Chemicals Co. Ltd.

DiKetene

• Category :

  Intermediates

• Synonyms :

  diketen;Ketenedimer,99%;Ketene Dimer;DK;Acetyl ketene;4-Methylene-2-oxetanone;But-3-en-3-olide;4-methylideneoxetan-2-one;but-1-ene-1,3-dione;

• CAS NO :

  674-82-8

• EC NO :

  211-617-1

• Molecular Formula :

  C₄H₄O₂

• Molecular Weight :

  84.0734

• Main Specifications :

• InChI :

  InChI=1/C4H4O2/c1-4(6)2-3-5/h2H,1H3

• Product description :

  Product name: diketene; diketen; Ketenedimer, 99 %; Ketene Dimer; DK; Acetyl ketene; 4-Methylene-2-oxetanone; But-3-en-3-olide 
  CAS No .: 674-82-8 
  EINECS number: 211-617-1 
  Molecular formula:C4H4O2

  Basic information  Product Name: diketen; Ketenedimer, 99%; Ketene Dimer; DK; Acetyl ketene; 4-Methylene-2-oxetanone; But-3-en-3-olide; 4-methylideneoxetan-2-one; but -1-ene-1, 3-dione 
  Molecular weight 84.0744

  Main quality index:

  Index name	index
  Appearance:	Colorless or light yellow liquid, irritating odor
  content:	≥ 97.0%
  Acetic anhydride:	≤ 3%

  Physical and chemical properties  nature: colorless, flammable liquid odor stimuli. The relative density of 1.0897 (20/20 ℃). Melting point of -7.5 ℃.  boiling point 127.4 ℃. Refractive index nD (20 °C) 1.4379. Specific heat capacity 0.1990kJ/(kg • ℃). Flash point 34 ℃. Soluble in ordinary organic solvents. Chemical nature of lively. Layered in water.

  Packaging and Storage: flammable materials, glass-lined or should be stored in an aluminum container, a low temperature (0 ~ 5 ℃) storage. Transport and fire, inorganic acid and water contact, is strictly prohibited to prevent explosion. According to the provisions of storage of flammable chemicals.

  The main uses: as drug intermediates, food preservatives, pigments and modifiers

• Molecular Structure :