Tetraethylene glycol dimethyl ether

  • Bis[2-(2-methoxyethoxy)ethyl] ether
  • 2,5,8,11,14-Pentaoxapentadecane
  • Tetraglyme
Formula
CH3O(CH2CH2O)4CH3
Structure
Description
Colorless liquid.
Uses
Often used as a solvent.

Registry Numbers and Inventories.
CAS
143-24-8
EC (EINECS/ELINCS)
205-594-7
R 19 43
RTECS
SB0400000
RTECS class
Reproductive Effector; Primary Irritant
UN (DOT)
3334
Merck
12,9348
Beilstein/Gmelin
1760005
Beilstein Reference
4-01-00-02404
Swiss Giftliste 1
G-4273
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H22O5
Formula mass
222.28
Melting point, °C
-27
Boiling point, °C
275
Vapor pressure, mmHg
0.009 (25 C)
Vapor density (air=1)
7.7
Density
1.0087 g/cm3 (20 C)
Solubility in water
Soluble
Viscosity
1.42 cp (70 C)
Surface tension
28.19 g/s2 (80 C)
Refractive index
1.4303 (20 C)
Partition coefficient, pKow
-1.51
Heat of vaporization
49.3 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
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
Strong acids - oxidizing agents - oxygen.
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Fire.
Flash Point,°C
116
Autoignition, °C
200
Upper exp. limit, %
9.9
Lower exp. limit, %
0.8
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
   Ingestion
May cause digestive tract disturbances.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
Causes 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 immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3334
Response guide
40. Glycol ethers
HS Code
2909 19 00