3-Methyl-3-buten-2-one Struktur

Isopropenylmethylketon

Bezeichnung:Isopropenylmethylketon

CAS-Nr814-78-8

Englisch Name:3-Methyl-3-buten-2-one

CBNumberCB2399238

SummenformelC5H8O

Molgewicht84.12

MOL-Datei814-78-8.mol

Synonyma

3-Methylbut-3-en-2-on

Isopropenylmethylketon

Isopropenylmethylketon physikalisch-chemischer Eigenschaften

Schmelzpunkt	-54°C
Siedepunkt	98°C
Dichte	0,86 g/cm³
Brechungsindex	1.4210 to 1.4250
Flammpunkt	9°C
storage temp.	Freezer
Wasserlöslichkeit	Slightly soluble in water
Löslichkeit	Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Slightly)
Aggregatzustand	clear liquid
Farbe	Colorless to Light yellow
Geruch (Odor)	Very pungent; pleasant; sweet.
LogP	0.561 (est)
CAS Datenbank	814-78-8
NIST chemische Informationen	3-Buten-2-one, 3-methyl-(814-78-8)
EPA chemische Informationen	3-Buten-2-one, 3-methyl- (814-78-8)

Sicherheit

Kennzeichnung gefährlicher	F,T+
R-Sätze:	11-23/24/25-36/37/38-27-25
S-Sätze:	16-29-33-36/37/39-45-28-26
RIDADR	1246
RTECS-Nr.	EN0175000
HazardClass	3.1
PackingGroup	II
HS Code	29141900
Giftige Stoffe Daten	814-78-8(Hazardous Substances Data)

Gefahreninformationscode (GHS)

3-Methyl-3-buten-2-one Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S29:Nicht in die Kanalisation gelangen lassen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Colorless or light yellow transparent liquid
Verwenden
Plastics.
Definition
ChEBI: 3-Methyl-3-buten-2-one is an olefinic compound. It is functionally related to an acrylic acid.
Vorbereitung Methode
3-Methyl-3-buten-2-one is produced by acid-catalyzed condensation of 2-butanone with formaldehyde in the liquid phase. A further possibility is the methylolization of 2- butanone under alkaline conditions followed by elimination of water:
Allgemeine Beschreibung
A clear colorless liquid. Flash point of 52°F. Denser than water and insoluble in water. Hence sinks in water. Vapors heavier than air.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
3-Methyl-3-buten-2-one tends to polymerize; this reaction is mostly suppressed by the inhibitor. Can polymerize if heated or contaminated. If confined in a container when polymerization is initiated, the container may violently rupture [USCG, 1999].
Hazard
Flammable, dangerous fire risk, explosivelimits in air 1.8–9.0%.
Health Hazard
Inhalation causes irritation of nose and throat. Liquid may cause severe damage to eyes, resulting possibly in some permanent impairment of vision; vapor produces tears. If not removed promptly from skin, liquid may cause delayed pain and blistering. Ingestion causes irritation of mouth and stomach.
Brandgefahr
Behavior in Fire: May polymerize and explode.
Chemische Reaktivität
Reactivity with Water: No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Will polymerize in the absence of inhibitor, especially when heated; Inhibitor of Polymerization: Up to 1% hydroquinone.
Sicherheitsprofil
Poison by ingestion and skin contact. Moderately toxic by inhalation and intraperitoneal routes. A skin and severe eye irritant. A dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.

3-Methyl-3-buten-2-one Upstream-Materialien And Downstream Produkte

Isopropenylmethylketon Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

814-78-8, 3-Methyl-3-buten-2-one Verwandte Suche:

Send Inquriy