Diethoxymethan

Bezeichnung:Diethoxymethan

CAS-Nr462-95-3

Englisch Name:DIETHOXYMETHANE

CBNumberCB4128049

SummenformelC5H12O2

Molgewicht104.15

MOL-Datei462-95-3.mol

Synonyma

Diethoxymethan

Diethoxymethan physikalisch-chemischer Eigenschaften

Schmelzpunkt	-66.5 °C
Siedepunkt	87-88 °C (lit.)
Dichte	0.831 g/mL at 25 °C (lit.)
Dampfdichte	3.6 (vs air)
Dampfdruck	60 mm Hg ( 25 °C)
Brechungsindex	n20/D 1.373(lit.)
Flammpunkt	22 °F
storage temp.	Store below +30°C.
Löslichkeit	91g/l
Aggregatzustand	Liquid
Farbe	Clear colorless
Geruch (Odor)	Very diffusive, sweet-ethereal odor, somewhat reminiscent of Acetone and Methyl acetate
Geruchsart	Sweet, ethereal, slightly fruity taste. Not very powerful
Explosionsgrenze	1.5%(V)
Wasserlöslichkeit	4.2 G/100 ML
BRN	1697253
Dielectric constant	2.5299999999999998
Stabilität	Stable. Highly flammable. Incompatible with strong oxidizing agents, strong acids.
InChIKey	KLKFAASOGCDTDT-UHFFFAOYSA-N
LogP	0.84
CAS Datenbank	462-95-3(CAS DataBase Reference)
NIST chemische Informationen	Diethoxymethane(462-95-3)
EPA chemische Informationen	Ethane, 1,1'-[methylenebis(oxy)]bis- (462-95-3)

Sicherheit

Kennzeichnung gefährlicher	F,Xi
R-Sätze:	11-36/37/38
S-Sätze:	16-26-36-9-37/39-33
RIDADR	UN 2373 3/PG 2
WGK Germany	2
RTECS-Nr.	PA8500000
F	3
Selbstentzündungstemperatur	346 °F
TSCA	Yes
HS Code	2911 00 00
HazardClass	3
PackingGroup	II
Toxizität	LD50 orally in Rabbit: 3536 mg/kg LD50 dermal Rat > 16600 mg/kg

Gefahreninformationscode (GHS)

DIETHOXYMETHANE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
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.
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
Chemische Eigenschaften
colourless liquid
Verwenden
Diethoxymethane (DEM) is offered by Eastman Chemical Company as a cost-effective replacement solvent for monoglyme (1,2- dimethoxyethane) and methylal. The DEM diether is stable under alkaline conditions, but can be cleaved by strong acids. Diethoxymethane can be used as a chemical intermediate in many organic synthesis reactions. Diethoxymethane is useful as a solvent in lithium batteries with nonaqueous electrolytes, as a solvent for polymeric materials, and as a fuel additive. As a chemical intermediate DEM can act as an ethoxymethylating reagent for alcohols and phenols and serve as a source for formaldehyde in organic synthesis.
Verwenden
Diethoxymethane may be used as a substitute solvent to dichloromethane and toluene in the O-alkylation of different phenols in the presence of phase transfer catalysts (PTCs).
Synthesis Reference(s)
Synthetic Communications, 25, p. 3939, 1995 DOI: 10.1080/00397919508011470
Allgemeine Beschreibung
A colorless volatile liquid with an agreeable odor. Less dense than water. Flash point below 10°F. Vapors heavier than air. May be narcotic in high concentrations. Used as a solvent and in the manufacture of cosmetics.
Air & Water Reaktionen
Highly flammable. Soluble in water.
Reaktivität anzeigen
DIETHOXYMETHANE, an acetal, is incompatible with strong oxidizing agents and acids. Breaks down to formaldehyde and ethanol in acidic solutions.
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 may cause pollution.
Brandgefahr
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Flammability and Explosibility
Highly flammable
Sicherheitsprofil
Moderately toxic by ingestion. Flammable when exposed to heat or flame; can react vigorously with oxidizers. When heated to decomposition it emits acrid smoke and irritating fumes.

DIETHOXYMETHANE Upstream-Materialien And Downstream Produkte

Diethoxymethan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

462-95-3, DIETHOXYMETHANE Verwandte Suche:

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