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Poly(ethylene glycol) dimethyl ether

Catalog Number
ACM24991557-1
CAS Number
24991-55-7
Product Name
Poly(ethylene glycol) dimethyl ether
Structure
Category
Poly(ethylene glycol) and Poly(ethylene oxide); Polymers
Description
1,2-dimethoxyethane appears as a liquid with a sharp odor. Less dense than water. Flash point 34°F. Mildly toxic by ingestion and inhalation. Severely irritates skin and eyes. Vapors heavier than air. Used to make other chemicals.;Liquid;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
IUPAC Name
1,2-dimethoxyethane
Molecular Weight
90.12g/mol
Molecular Formula
C4H10O2;CH3OCH2CH₂OCH3;C4H10O2;C4H10O2
Canonical SMILES
COCCOC
InChI
InChI=1S/C4H10O2/c1-5-3-4-6-2/h3-4H2,1-2H3
InChI Key
XTHFKEDIFFGKHM-UHFFFAOYSA-N
Boiling Point
185 °F at 760 mm Hg (NTP, 1992);85.0 °C;82-83 °C @ 760 MM HG;82-83 °C
Melting Point
-72 °F (NTP, 1992);-58.0 °C;-58 °C; ALSO REPORTED AS -71 °C;-58 °C
Flash Point
32 °F (NTP, 1992);29 °F(-2 °C) (CLOSED CUP);-2 °C c.c.
Density
0.868 at 68 °F (USCG, 1999);0.86285 @ 20 °C/4 °C;Relative density (water = 1): 0.86
Solubility
greater than or equal to 100 mg/mL at 72° F (NTP, 1992);11.10 M;MISCIBLE WITH WATER, ALCOHOL; SOL IN HYDROCARBON SOLVENTS;SOL IN CHLOROFORM, ETHER, ACETONE, BENZENE;water solubility = 1.00X10+6 mg/l @ 25 °C;Solubility in water: miscible
Application
Poly(ethylene glycol) dimethyl ether serves as a versatile reagent primarily utilized in synthesis, especially known for its role as a non-polar solvent. This compound, with its chemical formula CH3O(CH2CH2O)nCH3, facilitates cross-linking in various reactions, thanks to its unique structure related to ethylene glycol. As part of its chemical versatility, it actively participates in click chemistry, forming reliable and efficient bonds. Its application is crucial in the development of various materials and processes, demonstrating its significance as a reagent in chemical synthesis.
Color/Form
WATER-WHITE LIQUID;COLORLESS LIQUID
Complexity
17.5
Covalently-Bonded Unit Count
1
EC Number
203-794-9;607-475-9
Exact Mass
90.06808g/mol
Formal Charge
0
Heat of Vaporization
134 BTU/LB= 74.6 CAL/G= 3.12X10+5 JOULES
Heavy Atom Count
6
ICSC Number
1568
Log P
-0.21 (LogP);Log Kow = -0.21;-0.21
MeSH Entry Terms
1,2-dimethoxyethane;1,2-dimethoxyethane, conjugate monoacid;dimethoxyethane;ethylene glycol dimethyl ether
Monoisotopic Mass
90.06808g/mol
NSC Number
60542
Odor
SHARP ETHEREAL ODOR;Mild odor
Other Experimental
CONVERSION FACTORS /FOR AIR/: 1 PPM= APPROX 3.68 MG/CU M @ 25 °C, 760 MM HG, 1 MG/L= APPROX 272 PPM @ 25 °C, 760 MM HG;RATIO OF SPECIFIC HEATS OF VAPOR (GAS): 1.071; HEAT OF SOLUTION: (ESTIMATED) -9 BTU/LB= -5 CAL/G= -0.2X10+5 JOULES/KG
Refractive Index
INDEX OF REFRACTION: 1.3813 @ 20 °C/D, 1.3739 @ 24 °C/D
Rotatable Bond Count
3
RTECS Number
KI1451000
UNII
GXS24JF5IW
UN Number
2252;2252;2252;2252
Vapor Density
3.1 (NTP, 1992) (Relative to Air);3.1 (AIR= 1);Relative vapor density (air = 1): 3.1
Vapor Pressure
40 mm Hg at 51.3 °F ; 60 mm Hg at 67.5° F (NTP, 1992);48.00 mmHg;48 MM HG @ 20 °C;Vapor pressure, kPa at 20 °C: 6.4
XLogP3
-0.2
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