But-2-in

Bezeichnung:But-2-in

CAS-Nr503-17-3

Englisch Name:2-Butyne

CBNumberCB7853683

SummenformelC4H6

Molgewicht54.09

MOL-Datei503-17-3.mol

Synonyma

But-2-in

But-2-in physikalisch-chemischer Eigenschaften

Schmelzpunkt	-32 °C
Siedepunkt	27 °C(lit.)
Dichte	0.691 g/mL at 25 °C(lit.)
Dampfdruck	11.47 psi ( 20 °C)
Brechungsindex	n20/D 1.393(lit.)
Flammpunkt	-25 °C
storage temp.	2-8°C
Aggregatzustand	Liquid
Wichte	0.691
Farbe	Clear colorless to light yellow
Wasserlöslichkeit	Not miscible in water.
Wärmeleitfähigkeit	0.12 W/(m·K) at 25 ℃
BRN	1361340
Henry's Law Constant	4.6×10^-4 mol/(m³Pa) at 25℃, Yaws (2003)
InChI	InChI=1S/C4H6/c1-3-4-2/h1-2H3
InChIKey	XNMQEEKYCVKGBD-UHFFFAOYSA-N
SMILES	CC#CC
CAS Datenbank	503-17-3(CAS DataBase Reference)
EPA chemische Informationen	2-Butyne (503-17-3)

Sicherheit

Kennzeichnung gefährlicher	F+,Xi
R-Sätze:	12-36/37/38
S-Sätze:	16-26-36
RIDADR	UN 1144
WGK Germany	3
RTECS-Nr.	GQ7210000
TSCA	TSCA listed
HazardClass	3
PackingGroup	I
HS Code	29012990
Speicherklasse	3 - Flammable liquids
Hazard Classifications	Eye Irrit. 2 Flam. Liq. 1 Skin Irrit. 2 STOT SE 3

Gefahreninformationscode (GHS)

2-Butyne Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R12:Hochentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
clear colorless to light yellow liquid
Verwenden
2-Butyne is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E. It is also used as pharmaceutical intermediates.
Allgemeine Beschreibung
A clear colorless liquid with a petroleum-like odor. Flash point below -4°F. Boiling point 81°F. Less dense than water and insoluble in water. Vapors heavier than air.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
2-Butyne may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
Hazard
Flammable, dangerous fire risk. Moderate explosion hazard.
Health Hazard
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Sicherheitsprofil
A simple asphyxiant. Very dangerous fire hazard when exposed to heat or flame; can react with oxidzing materials. Moderately explosive in the form of vapor when exposed to heat or flame. To fight fire, use foam, CO2, dry chemicals. See also ACETYLENE COMPOUNDS and ARGON (for a description of simple asphyxiants).
läuterung methode
Stand it over sodium for 24hours, then fractionally distil it under reduced pressure into a cooled receiver. [Beilstein 1 IV 971.]

2-Butyne Upstream-Materialien And Downstream Produkte

But-2-in Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

503-17-3, 2-Butyne Verwandte Suche:

Send Inquriy