Diethylene glycol monomethyl ether

  • 2-(2-Methoxyethoxy)ethanol
Formula
HOCH2CH2OCH2CH2OCH3
Structure
Description
Colorless liquid with a mild, pleasant odor. Hygroscopic.
Uses
Used where a solvent with a higher boiling pointermediate is required.

Registry Numbers and Inventories.
CAS
111-77-3
EC (EINECS/ELINCS)
203-906-6
EC Index Number
603-107-00-6
EC Class
Toxic for reproduction Category 3
RTECS
KL6125000
RTECS class
Reproductive Effector; Primary Irritant
Merck
12,6116
Beilstein/Gmelin
1697812
Beilstein Reference
4-01-00-02392
EPA OPP
42204
Swiss Giftliste 1
G-1500
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H12O3
Formula mass
120.15
Melting point, °C
-65
Boiling point, °C
193
Vapor pressure, mmHg
0.3 (25 C)
Vapor density (air=1)
4.14
Saturation Concentration
240 ppm at 20 C; 330 ppm at 25 C (calculated)
Evaporization number
900 (diethyl ether = 1)
Critical temperature
399
Critical pressure
36.22
Density
1.025 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
3.45 cp (25 C)
Surface tension
34.8 g/s2
Refractive index
1.4264 (20 C)
Dipole moment
1.91 D
Dielectric constant
14.8 (20 C)
Heat of vaporization
45.64 kJ/mol
Heat of combustion
-2993 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
B3 D2A
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
91
Autoignition, °C
215
Upper exp. limit, %
18.1
Lower exp. limit, %
1.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode when heated. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
Fire potential
This chemical is combustible.
Health
1
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause digestive tract disturbances.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
USCG CHRIS Code
DGM
 
40 Glycol ethers
HS Code
2909 42 00
 
IMO Chemical Code
18
IMO Pollution Category
D