TIANFU-CHEM Acetyl ...

TIANFU-CHEM Acetyl ketene

TIANFU-CHEM Acetyl ketene

Min.Order / FOB Price:Get Latest Price

1 Kilogram

Negotiable

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

Keywords

Acetyl ketene 674-82-8 C4H4O2

Quick Details

Appearance:Solid
Application:Organic synthesis
PackAge:IN 25kg drums
ProductionCapacity:10|Metric Ton|Month
Storage:In Room Temperature
Transportation:As per the MSDS

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

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.

Acetyl ketene Preparation Products And Raw materials

Preparation Products

Acetic anhydride-->Ethyl acetoacetate-->Chloroacetyl chloride-->5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one-->Methyl acetoacetate-->Acetoacetanilide-->Sorbic acid-->Pigment Red 122-->Quizalofop-p-ethyl-->Dehydroacetic acid-->Butyric anhydride-->2-Acetylbutyrolactone-->Acesulfame-->Imazethapyr-->Ethyl 4-chloroacetoacetate-->6-Methyl-1,2,3-oxathiazin-4(3H)-one 2,2-dioxide potassium salt-->o-Acetoacetaniside-->Olaquindox-->tert-Butyl acetoacetate-->N,N-Diethylacetoacetamide-->Manidipine-->Amitriptyline hydrochloride -->Seedavay(Uniroyal)-->N-Methylacetoacetamide-->Isobutyl acetoacetate-->2'-Chloroacetoacetanilide-->PHOSPHAMIDON-->Acetoacetamide-->2'-Methylacetoacetanilide-->ACETOACETIC ACID N-BUTYL ESTER-->(2R,3S,22S,24S)-2,3,22,23-TETRAHYDROXY-24-ETHYL-BETA-HOMO-7-OXA-5A-CHOLESTAN-6-ONE-->2,6-HEPTANEDIONE-->5-CHLORO-6 B,19-EPOXY-5A -ANDROTANE-3,17-DIONE-->N-Acetyl-N-(4-chloro-2-nitrophenyl)acetamide-->Dichlorosulfophenyl-3-methylpyrazolone-->FEMA 2510-->N,N'-(3,3'-Dimethyl-4,4'-biphenyldiyl)bis(3-oxobutanamide)-->4'-Methoxyacetoacetanilide

Raw materials

Acetic acid glacial-->Acetone-->Poly(ethylene)-->Butyl acetate-->ketene -->Triethyl phosphate-->Polymerization inhibitor

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