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534-15-6

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Identification

Name
1,1-Dimethoxyethane
CAS
534-15-6
Synonyms
1,1-DIMETHOXYETHANE
ACETALDEHYDE DIMETHYL ACETAL
AKOS BBS-00004400
DIMETHYL ACETAL
ETHYLIDENE DIMETHYL ETHER
FEMA 3426
1,1-dimethoxy-ethan
1,1'-Dimethoxyetiane
acetaldehydemethylacetal
CH3CH(OCH3)2
Dimethyl aldehyde
dimethylaldehyde
Ethane,1,1-dimethoxy-
methylformyl
1 1-DIMETHOXYETHANE 97+%
Acetaldehyde dimethyl acetal, 96% (1,1-Dimethoxyethane)
Acetaldehydedimethylacetal,98+%
1,1-DIMETHOXYETHANE REAGENT
Acetaldehyde Dimethyl acetal (1,1-Dimethoxyethane)
ACETALDEHYDEDIMETHYLACETAL,TECHNICAL
EINECS(EC#)
208-589-8
Molecular Formula
C4H10O2
MDL Number
MFCD00008493
Molecular Weight
90.12
MOL File
534-15-6.mol

Chemical Properties

Appearance
clear colorless liquid
mp 
-113 °C
bp 
64 °C(lit.)

density 
0.852 g/mL at 25 °C(lit.)

vapor density 
3.1 (vs air)

FEMA 
3426
refractive index 
n20/D 1.367(lit.)

Fp 
1 °F

storage temp. 
Flammables area
Sensitive 
Moisture Sensitive
Merck 
14,3226
BRN 
1697039
CAS DataBase Reference
534-15-6(CAS DataBase Reference)
NIST Chemistry Reference
Ethane, 1,1-dimethoxy-(534-15-6)
EPA Substance Registry System
534-15-6(EPA Substance)

Safety Data

Hazard Codes 
F
Risk Statements 
R11:Highly Flammable.
Safety Statements 
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S33:Take precautionary measures against static discharges .
RIDADR 
UN 2377 3/PG 2

WGK Germany 
2

RTECS 
AB2825000


10-21
HazardClass 
3
PackingGroup 
II
HS Code 
29091990
Safety Profile
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.
Hazardous Substances Data
534-15-6(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

General Description
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.
Reactivity Profile
1,1-DIMETHOXYETHANE(534-15-6) 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.
Air & Water Reactions
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.
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.
Fire Hazard
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.

Material Safety Data Sheet(MSDS)

Questions And Answer

Description
1,1-Dimethoxyethane is an aliphatic hydrocarbon which is found in figs, leek, and black tea. It gives a sharp ethereal, fruity and green note. It is used as a flavoring agent in food. 1,1-Dimethoxyethane is also used as a reagent for the diol protection and condensation reactions.
Preparation
To a flask equipped with a mechanical stirrer, condenser, and gas addition tube and containing 10 gm of a 6 3% solution of boron trifluoride in methanol is added 1.0 gm of mercuric oxide and 200 gm (6.25 moles) of methanol. Then 70 gm (3.13 moles) of acetylene is added with vigorous stirring at room temperature. After the reaction the catalyst is neutralized with aqueous potassium carbonate, the product is extracted into ether, dried, and distilled to afford 104 gm (37%), b.p. 64°-65°C.
preparation of 1,1-Dimethoxyethane
Reference
Evaluation of Certain Food Additives and Contaminants: Fifty-seventh report of the Joint FAO/WHO Expert Committee on Food Additives, 2001, ISBN 92-4-120909-7
M. J. Taschner, Encyclopedia of Reagents for Organic Synthesis, 2001, ISBN 9780471936237

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