CAS 24991-55-7 Poly(ethylene glycol) dimethyl ether

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Poly(ethylene glycol) dimethyl ether

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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

EC Number

203-794-9;607-475-9

Exact Mass

90.06808g/mol

Formal Charge

Heat of Vaporization

134 BTU/LB= 74.6 CAL/G= 3.12X10+5 JOULES

Heavy Atom Count

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

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