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DiKetene

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  Post Date: Apr 07,2017
  Expiry Date: Oct 04,2017
  Detailed Description: Cas No. :674-82-8

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

  CAS Registry Number:

674-82-8
  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;
  Molecular Formula: C4H4O2
  Molecular Weight: 84.0734
  Molecular Structure: 674-82-8 diketene
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R10:;
R20:;
  Safety Description: S3:;

  Company: Jiaozhou Fine Chemicals Co. Ltd.     [ China ]        
  Contact: Manager Wang
  Tel: 0086-359-3352201
  Fax: 0086-359-3352201
  Email: bobzgq@163.com
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