Acrylic anhydride Struktur

Acrylsureanhydrid

Bezeichnung:Acrylsureanhydrid

CAS-Nr2051-76-5

Englisch Name:Acrylic anhydride

CBNumberCB4325738

SummenformelC6H6O3

Molgewicht126.11

MOL-Datei2051-76-5.mol

Synonyma

Acrylsureanhydrid

Acrylsureanhydrid physikalisch-chemischer Eigenschaften

Schmelzpunkt	-20 °C
Siedepunkt	85-86°C 17mm
Dichte	1,094 g/cm³
Flammpunkt	77°C
storage temp.	2-8°C
Löslichkeit	Chloroform (Sparingly), Ethyl Acetate (Slightly)
Aggregatzustand	clear liquid
Farbe	Colorless to Almost colorless
Stabilität	Moisture sensitive
InChI	InChI=1S/C6H6O3/c1-3-5(7)9-6(8)4-2/h3-4H,1-2H2
InChIKey	ARJOQCYCJMAIFR-UHFFFAOYSA-N
SMILES	C(=O)(C=C)OC(=O)C=C
CAS Datenbank	2051-76-5(CAS DataBase Reference)

Sicherheit

R-Sätze:	14-20/21/22-34
S-Sätze:	26-36/37/39-45
RIDADR	3265
HazardClass	8
PackingGroup	II
HS Code	2916199590

Gefahreninformationscode (GHS)

Acrylic anhydride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Verwenden
Acrylic anhydride can be used to prepare specialty acrylate, acrylamide monomers or acrylic resin. It forms cyclic anhydrides on polymerization and can not be used as a crosslinker.
Synthese
The synthesis of Acrylic anhydride is as follows:
In a 3-liter, four-necked glass reactor provided with a thermometer and a stirrer were placed, in a dry air atmosphere, 1,240 g of methylene chloride, 1.08 g (0.5% by mass) of Sumilizer GM, 0.65 g (0.3% by mass) of Sumilizer TP-D, 0.65 g (0.3% by mass) of Sumilizer WX-R, 216 g (3.0 mol) of acrylic acid and 264 g (1.5 mol) of benzenesulfonyl chloride. The mixture was cooled to 5°C. Then, 304 g (3.0 mol, 1 equivalent relative to the acids generated from benzenesulfonyl chloride) of triethylamine was dropwise added in 2 hours with the temperature of the reaction mixture being controlled at 30°C or lower. After the completion of the dropwise addition, stirring was made for 1 hour with the same temperature being kept. The reaction mixture was analyzed by GC, which indicated that the conversion of acrylic acid was 99%. After the completion of the reaction, 375 g of water was added to the reaction mixture to wash the reaction mixture. The reaction mixture was further washed twice each time with 563 g of water, after which distillation was conducted to remove methylene chloride. The yield of the acrylic acid anhydride obtained was 172 g and 91% and its purity by GC analysis was 99%, and no high-molecular by-product was detected.

Acrylic anhydride Upstream-Materialien And Downstream Produkte

Acrylsureanhydrid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

2051-76-5, Acrylic anhydride Verwandte Suche:

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