CAS 24991-55-7 Poly(ethylene glycol) dimethyl ether (NHD), average Mn ~250

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Poly(ethylene glycol) dimethyl ether (NHD), average Mn ~250

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Catalog Number

ACM24991557-2

CAS Number

24991-55-7

Product Name

Poly(ethylene glycol) dimethyl ether (NHD), average Mn ~250

Structure

Category

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

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