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Henan Tianfu Chemical Co., Ltd.TIANFU-CHEM Acetyl ketene//file1.lookchem.com/cas/reactions/2021/05/27/104541.png
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TIANFU-CHEM Acetyl ketene CAS NO.674-82-8

Min.Order Quantity:
1 Kilogram
Purity:
99.0%
Port:
SHANGHAI
Payment Terms:
L/C,D/A,D/P,T/T,MoneyGram,Other

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Product Details

Keywords

  • Acetyl ketene
  • 674-82-8
  • C4H4O2

Quick Details

  • ProName: TIANFU-CHEM Acetyl ketene
  • CasNo: 674-82-8
  • Molecular Formula: C4H4O2
  • Appearance: Solid
  • Application: Organic synthesis
  • DeliveryTime: PROMPT
  • PackAge: IN 25kg drums
  • Port: SHANGHAI
  • ProductionCapacity: 10 Metric Ton/Month
  • Purity: 99.0%
  • Storage: In Room Temperature
  • Transportation: As per the MSDS
  • LimitNum: 1 Kilogram
  • Heavy metal: N/A
  • Grade: Industrial Grade,Food Grade,Pharma Gra...
  • N/A: N/A

Superiority

acetyl ketene basic information
product name: acetyl ketene
synonyms: 3-buteno-beta-lactone;3-butenoic acid, 3-hydroxy-, beta-lactone;3-hydroxy-3-butenoicacibeta-lactone;4-methylene-2-oxetanon;diketen;diketene,inhibited;ethenone, dimer;ethenone,dimer
cas: 674-82-8
mf: c4h4o2
mw: 84.07
einecs: 211-617-1
product categories: pharmaceutical intermediates;aromatic amine products
mol file: 674-82-8.mol
acetyl ketene structure

Details

acetyl ketene chemical properties
mp -7.5°c
bp 69-70 °c100 mm hg(lit.)
density 1.09 g/ml at 25 °c(lit.)
vapor density 2.9 (vs air)
vapor pressure 7.9 mm hg ( 20 °c)
refractive index n20/d 1.439(lit.)
fp 95 °f
storage temp. 2-8°c
cas database reference 674-82-8(cas database reference)
nist chemistry reference 2-oxetanone, 4-methylene-(674-82-8)
epa substance registry system 2-oxetanone, 4-methylene-(674-82-8)
safety information
hazard codes xn
risk statements 10-20-40-36/37/38
safety statements 3-36/37-33-24/25-23-16-26
ridadr un 2929 6.1/pg 2
wgk germany 2
rtecs rq8225000
f 19-21-27
hazardclass 6.1(a)
packinggroup i
hazardous substances data 674-82-8(hazardous substances data)
msds information
provider language
diketene english
sigmaaldrich english
acetyl ketene usage and synthesis
general description a colorless liquid with a disagreeable odor. slightly less dense than water. flash point 90°f. irritates skin and eyes. used to make paints and pharmaceuticals.
air & water reactions highly flammable. slightly soluble in water.
reactivity profile diketene is a very reactive dimer, acetyl ketene may undergo a spontaneous decomposition followed by explosion or ignition [vervalin, 1973, p.86]. in the presence of bases, amines, mineral acids or lewis acids a violent polymerization will occur, accompanied by gas evolution [zdenek, f. et al., czech pat. 156 584, 1975].
health hazard toxic; may be fatal if inhaled, ingested or absorbed through skin. inhalation or contact with some of these materials will irritate or burn skin and eyes. fire will produce irritating, corrosive and/or toxic gases. vapors may cause dizziness or suffocation. runoff from fire control or dilution water may cause pollution.
fire hazard highly flammable: will be easily ignited by heat, sparks or flames. vapors may form explosive mixtures with air. vapors may travel to source of ignition and flash back. most vapors are heavier than air. they will spread along ground and collect in low or confined areas (sewers, basements, tanks). vapor explosion and poison hazard indoors, outdoors or in sewers. may polymerize explosively when heated or involved in a fire. runoff to sewer may create fire or explosion hazard. containers may explode when heated. many liquids are lighter than water.

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