2-ETHOXY-3,4-DIHYDRO-2H-PYRAN Struktur

2-Ethoxy-3,4-dihydro-2H-pyran

Bezeichnung:2-Ethoxy-3,4-dihydro-2H-pyran

Englisch Name:2-ETHOXY-3,4-DIHYDRO-2H-PYRAN

CBNumberCB7304529

SummenformelC7H12O2

Molgewicht128.17

Synonyma

3,4-Dihydro-2H-pyran-2-ylethylether

2-Ethoxy-3,4-dihydro-2H-pyran

2-Ethoxy-3,4-dihydro-2H-pyran physikalisch-chemischer Eigenschaften

Schmelzpunkt	153-155 °C
Siedepunkt	42 °C16 mm Hg(lit.)
Dichte	0.957 g/mL at 25 °C(lit.)
Brechungsindex	n20/D 1.439(lit.)
Flammpunkt	76 °F
storage temp.	2-8°C
Aggregatzustand	liquid
Farbe	Yellow
CAS Datenbank	103-75-3(CAS DataBase Reference)
EPA chemische Informationen	2H-Pyran, 2-ethoxy-3,4-dihydro- (103-75-3)

Sicherheit

Kennzeichnung gefährlicher	Xi,F
R-Sätze:	10-36/38-11
S-Sätze:	26-16
RIDADR	UN 3271 3/PG 3
WGK Germany	2
RTECS-Nr.	UP8925000
HazardClass	3.2
PackingGroup	III
HS Code	29329990
Giftige Stoffe Daten	103-75-3(Hazardous Substances Data)

Gefahreninformationscode (GHS)

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/38:Reizt die Augen und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
Colorless transparent liquid
Verwenden
Stabilizer, intermediate.
Synthesis Reference(s)
The Journal of Organic Chemistry, 42, p. 282, 1977 DOI: 10.1021/jo00422a025
Allgemeine Beschreibung
Colorless liquid. Floats on water.
Reaktivität anzeigen
Ethers, such as 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN can act as bases. They form salts with strong acids and addition complexes with Lewis acids. The complex between diethyl ether and boron trifluoride is an example. Ethers may react violently with strong oxidizing agents. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert.
Hazard
Moderate fire risk.
Health Hazard
Contact with liquid irritates eyes. Also irritates skin on prolonged contact.
Sicherheitsprofil
Moderately toxic by skin contact. Mildly toxic by ingestion and inhalation. A skin and eye irritant. Flammable liquid when exposed to flame, sparks, and oxidizers. To fight fire, use dry chemical, foam, fog. When heated to decomposition it emits acrid smoke and irritating fumes