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Acetyl ketene

Acetyl ketene Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Email: info@dakenchem.com
Products Intro: Product Name:Acetyl ketene
CAS:674-82-8
Purity:99% Package:100g,500g,1kg,5kg,10kg
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Email: info@tianfuchem.com
Products Intro: CAS:674-82-8
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: sales@mainchem.com
Products Intro: Product Name:Acetyl ketene
CAS:674-82-8
Company Name: career henan chemical co
Tel: +86-371-86658258
Email: sales@coreychem.com
Products Intro: Product Name:Acetyl ketene
CAS:674-82-8
Purity:99% Package:1KG;1USD
Company Name: Chemwill Asia Co.,Ltd.
Tel: 86-21-51086038
Email: chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com
Products Intro: CAS:674-82-8
Purity:0.99 Package:5KG;1KG;25KG PRICE quotation Remarks:Factory stock, quality assurance, price concessions

Lastest Price from Acetyl ketene manufacturers

  • Acetyl ketene
  • US $1.00 / KG
  • 2019-07-06
  • CAS:674-82-8
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: Customized
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:Aromatic amine products;Pharmaceutical Intermediates
Mol File:674-82-8.mol
Acetyl ketene Structure
Acetyl ketene Chemical Properties
Melting point -7.5°C
Boiling point 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 Reference674-82-8(CAS DataBase Reference)
NIST Chemistry Reference2-Oxetanone, 4-methylene-(674-82-8)
EPA Substance Registry System2-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
19-21-27
HazardClass 6.1(a)
PackingGroup I
Hazardous Substances Data674-82-8(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Diketene English
SigmaAldrich English
Acetyl ketene Usage And Synthesis
General DescriptionA 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 ReactionsHighly flammable. Slightly soluble in water.
Reactivity ProfileDIKETENE 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 HazardTOXIC; 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 HazardHIGHLY 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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