1,1-Dimethoxyethan

Bezeichnung:1,1-Dimethoxyethan

CAS-Nr534-15-6

Englisch Name:1,1-Dimethoxyethane

CBNumberCB6853747

SummenformelC4H10O2

Molgewicht90.12

MOL-Datei534-15-6.mol

Synonyma

1,1-Dimethoxyethan

1,1-Dimethoxyethan physikalisch-chemischer Eigenschaften

Schmelzpunkt	-113 °C
Siedepunkt	64 °C(lit.)
Dichte	0.852 g/mL at 25 °C(lit.)
Dampfdichte	3.1 (vs air)
Dampfdruck	200 hPa (20 °C)
Brechungsindex	n20/D 1.367(lit.)
FEMA	3426 \| 1,1-DIMETHOXYETHANE
Flammpunkt	1 °F
storage temp.	Store below +30°C.
Löslichkeit	Chloroform (Sparingly)
Aggregatzustand	Oil
Farbe	Colourless
Geruch (Odor)	at 1.00 % in propylene glycol. sharp sweet alcohol ether green new mown hay
Geruchsart	ethereal
Wasserlöslichkeit	Soluble
Sensitive	Moisture Sensitive
Merck	14,3226
JECFA Number	940
BRN	1697039
Dielectric constant	3.4900000000000002
LogP	0.63 at 25℃
CAS Datenbank	534-15-6(CAS DataBase Reference)
NIST chemische Informationen	Ethane, 1,1-dimethoxy-(534-15-6)
EPA chemische Informationen	1,1-Dimethoxyethane (534-15-6)

Sicherheit

Kennzeichnung gefährlicher	F
R-Sätze:	11
S-Sätze:	9-16-33
RIDADR	UN 2377 3/PG 2
WGK Germany	2
RTECS-Nr.	AB2825000
F	10-21
TSCA	Yes
HS Code	2911 00 00
HazardClass	3
PackingGroup	II
Giftige Stoffe Daten	534-15-6(Hazardous Substances Data)
Toxizität	LD50 orally in rats: 6.5 g/kg; LC (in air) in rats: 16000 ppm (Smyth)

Gefahreninformationscode (GHS)

1,1-Dimethoxyethane Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
S-Sätze Betriebsanweisung:
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
Chemische Eigenschaften
1,1-Dimethoxybenzene is a clear colorless liquid with a sharp, sweet, alcohol, ether, green, new-mown-hay odor. It can miscible with water, alcohol, ether and chloroform.
Occurrence
Reported found in raspberry, blackberry, strawberry, peas, fresh figs, hop oil, coffee, cognac, white wine and tea.
Verwenden
1,1-Dimethoxyethane is used as a reagent in the synthesis of tricyclic and tetracyclic 1,5-benzodiazepine derivatives as nevirapine analogues. It can also be used as Mering's mixture which is 2 vol dimethylacetal and 1 vol chloroform.
Verwenden
Acetaldehyde dimethyl acetal may be used in the preparation of glucoside derivatives of steganol. It may be used as polymer solvent for the encapsulation of water-soluble model protein, bovine serum albumin into biodegradable poly(D,L-lactic acid.
synthetische
From acetaldehyde and methanol.
Definition
ChEBI: 1,1-dimethoxyethane is an acetal that is dimethoxymethane substituted by a methyl group at position 1. It has a role as a flavouring agent and a plant metabolite. It is an acetal and a diether. It is functionally related to a dimethoxymethane.
Allgemeine Beschreibung
A liquid with a sharp odor. Less dense than water. Flash point between 0-73°F. Mildly toxic by ingestion and inhalation. Severely irritates the skin and eyes. Used to make other chemicals.
Air & Water Reaktionen
Highly flammable. May form unstable peroxides when exposed to oxygen. These products can sometimes be observed as clear crystals deposited on containers or along the surface of the liquid. Slightly soluble in water.
Reaktivität anzeigen
1,1-Dimethoxyethane may react violently with strong oxidizing agents. Can act as a weak base to form salts with strong acids and addition complexes with Lewis acids. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert.
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.
Sicherheitsprofil
Mildly toxic by inhalation, ingestion, and skin contact. A skin and eye irritant. A very dangerous fire hazard when exposed to heat, flame, or oxiduzers. When exposed to heat or flame it can react vigorously with oxidizing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also GLYCOL ETHERS.
läuterung methode
Distil the dimethyl acetal through a fractionating column and fraction boiling at 63.8o/751mm is collected. It forms an azeotrope with MeOH. Alternatively purify it as for acetal above. It has been purified by GLC. [Beilstein 1 IV 3103.]

1,1-Dimethoxyethane Upstream-Materialien And Downstream Produkte

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