Phenylacetylen

Bezeichnung:Phenylacetylen

CAS-Nr536-74-3

Englisch Name:Phenylacetylene

CBNumberCB9853753

SummenformelC8H6

Molgewicht102.13

MOL-Datei536-74-3.mol

Synonyma

Phenylacetylen

Phenylacetylen physikalisch-chemischer Eigenschaften

Schmelzpunkt	-44.8 °C
Siedepunkt	142-144 °C (lit.)
Dichte	0.93 g/mL at 25 °C (lit.)
Dampfdruck	17.6 mm Hg ( 37.7 °C)
Brechungsindex	n20/D 1.549(lit.)
Flammpunkt	88 °F
storage temp.	Store at +2°C to +8°C.
Löslichkeit	H2O: insoluble
pka	19(at 25℃)
Aggregatzustand	Liquid
Farbe	Clear colorless to yellow
Wichte	0.930
Wasserlöslichkeit	INSOLUBLE
Sensitive	Light Sensitive
Merck	14,3861
BRN	605461
Dielectric constant	3.0（20℃）
Stabilität	Stable. Flammable. Incompatible with strong oxidizing agents, acids, halogens.
CAS Datenbank	536-74-3(CAS DataBase Reference)
NIST chemische Informationen	Phenylacetylene(536-74-3)
EPA chemische Informationen	Phenylacetylene (536-74-3)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	10-36/37/38-40-65-36/37
S-Sätze:	16-26-36/37/39-45-62-36/37
RIDADR	UN 3295 3/PG 3
WGK Germany	1
RTECS-Nr.	DA0780000
F	8-19
TSCA	Y
HS Code	2902 90 00
HazardClass	3
PackingGroup	III

Gefahreninformationscode (GHS)

Phenylacetylene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R40:Verdacht auf krebserzeugende Wirkung.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
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).
Beschreibung
Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
Chemische Eigenschaften
colourless liquid
Verwenden
Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum..
Verwenden
Phenylacetylene is involved in the preparation of styrene by reduction using Lindlar catalyst. It is used to study the mechanism of the palladium-catalyzed phenyl acetylene oxidative carbonylation reaction. It is also used in the polymerization process to prepare polyphenylacetylene namely 1,2,4-triphenylbenzene and 1,3,5-triphenylbenzene.
Verwenden
Ethynylbenzene, an aromatic hydrocarbon, is important in the petrochemical industry as an intermediate in the production of styrene, which in turn is used for making polystyrene, a common plastic mate rial.
Application
Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum.
Phenylacetylene was used in a study to investigate the mechanism of product formation during the palladium-catalysed phenylacetylene oxidative carbonylation reaction.
Definition
ChEBI: Ethynylbenzene is a member of benzenes.
Synthesis Reference(s)
Journal of the American Chemical Society, 89, p. 4487, 1967 DOI: 10.1021/ja00993a043
Allgemeine Beschreibung
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
Flammability and Explosibility
Flammable
läuterung methode
Distil phenylacetylene through a spinning band column. It should be filtered through a short column of alumina before use [Collman et al. J Am Chem Soc 108 2988 1986; for pK see Brandsma Preparative Acetylenic Chemistry, 1st Edn Elsevier 1971, p. 15, ISBN 0444409475]. [Beilstein 5 IV 1525.]
Vorsichtsmaßnahmen
Store in cool place. Moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids, halogens, alkali metals and oxidizing agents.

Phenylacetylene Upstream-Materialien And Downstream Produkte

Phenylacetylen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

536-74-3, Phenylacetylene Verwandte Suche:

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