Dibenzylether

Bezeichnung:Dibenzylether

CAS-Nr103-50-4

Englisch Name:Benzyl ether

CBNumberCB8258535

SummenformelC14H14O

Molgewicht198.26

MOL-Datei103-50-4.mol

Synonyma

Dibenzylether

Dibenzylether physikalisch-chemischer Eigenschaften

Schmelzpunkt	1.5-3.5 °C(lit.)
Siedepunkt	298 °C(lit.)
Dichte	1.043 g/mL at 25 °C(lit.)
Dampfdruck	<1 Pa (25 °C)
Brechungsindex	n20/D 1.562
FEMA	2371 \| DIBENZYL ETHER
Flammpunkt	275 °F
storage temp.	2-8°C
Löslichkeit	42mg/l insoluble
Aggregatzustand	Liquid
Farbe	Clear colorless to pale yellow
Relative polarity	3.3
Geruch (Odor)	at 100.00 %. sweet fruity cherry earthy mushroom rose plastic
Geruchsart	earthy
Wasserlöslichkeit	insoluble
JECFA Number	1256
Merck	14,1132
BRN	1911156
Dielectric constant	3.8599999999999999
Stabilität	Stable. Combustible. Incompatible with strong acids, strong oxidizing agents.
LogP	3.31
CAS Datenbank	103-50-4(CAS DataBase Reference)
NIST chemische Informationen	Benzene, 1,1'-[oxybis(methylene)]bis-(103-50-4)
EPA chemische Informationen	Benzyl ether (103-50-4)

Sicherheit

Kennzeichnung gefährlicher	Xi,N
R-Sätze:	36/37/38-51/53
S-Sätze:	23-61
RIDADR	UN 3082 9/PG 3
WGK Germany	2
RTECS-Nr.	DQ6125000
F	9
Selbstentzündungstemperatur	470 °C
TSCA	Yes
HS Code	2909 30 90
HazardClass	9
PackingGroup	III
Giftige Stoffe Daten	103-50-4(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 2500 mg/kg

Gefahreninformationscode (GHS)

Benzyl ether Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
Dibenzyl ether has a slightly earthy, mushroom-like odor with a rosy undertone.
Chemische Eigenschaften
Dibenzyl ether is a clear, almost colorless liquid. It is miscible with alcohols and ethers, but insoluble in water. Dibenzyl ether is used as special solvent and delustering agent for textiles.
Verwenden
Benzyl ether is used as an effective GFP friendly tissue clearing medium for mouse brains. It is also used in a study to develop a detailed protocol for performing 3D imaging of solvent-cleared organs and its application to various microscopy techniques. It is also employed as a plasticizer for nitrocellulose and synthetic rubber, a solvent in perfumery, and a flavoring agent in chewing gums and baked goods. It can also be used as a plasticizer for nitrocellulose and a solvent in spices.
Definition
ChEBI: Dibenzyl ether is a benzyl ether in which the oxygen atom is connected to two benzyl groups. It has a role as a metabolite.
Application
Benzyl ether is an aromatic ether that is commonly employed as a protecting agent and benzylating agent. It is a plasticizer for nitrocellulose and a solvent in perfumery.
synthetische
As a by-product in the preparation of benzyl alcohol by hydrolysis of benzyl chloride; by using a concentrated caustic instead of carbonate, yields can be improved to 50% or higher.
Allgemeine Beschreibung
Colorless liquid with a mild odor.
Air & Water Reaktionen
Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick, 1979 p.151-154, 164]. Insoluble in water.
Reaktivität anzeigen
Benzyl ether can act as a base to form salts with strong acids and addition complexes with Lewis acids. May react violently with strong oxidizing agents. Burns readily but relatively inert in other reactions, which typically involve the breaking of the carbon-oxygen bond.
Hazard
Moderately toxic by ingestion. A skin irri- tant.
Health Hazard
Inhalation may cause nausea because of disagreeable odor. Contact of liquid with eyes causes mild irritation. Prolonged exposure of skin to liquid causes reddening and irritation. Ingestion produces nausea.
Brandgefahr
Benzyl ether is combustible.
Synthese
Benzyl ether is formed when benzyl alcohol is heated with strong acids or bases. It is produced almost exclusively by the alkaline hydrolysis of benzyl chloride. Heat treatment decomposes dibenzyl ether into benzaldehyde and toluene.
läuterung methode
Reflux the ether over sodium, then distil it under reduced pressure. It been purified by fractional freezing. [Beilstein 6 IV 2240.]

Benzyl ether Upstream-Materialien And Downstream Produkte

Dibenzylether Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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