Diethylene glycol

  • 2,2'-Dihydroxyethyl ether
  • 3-Oxypentane-1,5-diol
  • Ethylene diglycol
  • 2,2'-Oxydiethanol
  • bis(2-hydroxyethyl)ether
Formula
(HOCH2CH2)2O
Structure
Description
Colorless, practically odorless, syrupy liquid, hygroscopic.
Uses
Humectant for tobacco, casein, synthetic sponges, paper products, in cork compositions, book-binding adhesives.

Registry Numbers and Inventories.
CAS
111-46-6
EC (EINECS/ELINCS)
203-872-2
EC Index Number
603-140-00-6
EC Class
Harmful
RTECS
ID5950000
RTECS class
Tumorigen; Reproductive Effector; Human Data; Primary Irritant
Merck
13,3146
Beilstein/Gmelin
969209
Beilstein Reference
4-01-00-02390
EPA OPP
338200
Swiss Giftliste 1
G-1494
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H10O3
Formula mass
106.12
Melting point, °C
-10
Boiling point, °C
245
Decomposition point, °C
402
Vapor pressure, mmHg
0.006 (25 C)
Vapor density (air=1)
3.66
Saturation Concentration
13 ppm (.0013%) at 20 C (calculated)
Evaporization number
2000 (diethyl ether = 1)
Odor Threshold Odor threshold Odorless
Critical temperature
480
Critical pressure
47.08
Density
1.118 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
17.59 cp (35 C)
Surface tension
44.4 g/s2 (30 C)
Refractive index
1.4475 (20 C)
Dipole moment
2.31 D
Dielectric constant
32 (20 C)
Heat of fusion
13.5 kJ/mol
Heat of vaporization
61.96 kJ/mol
Heat of combustion
-2380 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Store protected from moisture.
D2A
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.
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
A half-face respirator with an organic vapor cartridge and particulate filter (NIOSH type P95 or R95 filter) may be worn for up to ten times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. A full-face piece respirator with an organic vapor cartridge and particulate filter (NIOSH P100 or R100 filter) may be worn up to 50 times the exposure limit, or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. Please note that N series filters are not recommended for this material. For emergencies or instances where the exposure levels are not known, use a full-face piece positive-pressure, air-supplied respirator.
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
Acids, methanoic acid, oxalic acid), azo, diazo, and hydrazines (e.g. dimethyl hydrazine, hydrazine, methyl hydrazine), isocyanates (e.g. methyl isocyanate), metals (alkali and alkaline, e.g. cesium, potassium, sodium), nitrides (e.g. potassium nitride, sodium nitride), peroxides and hydroperoxides (organic, e.g. acetyl peroxide, benzoyl peroxide, butyl peroxide, methyl ethyl ketone peroxide), epoxides (e.g. butyl glycidyl ether), oxidizing agents (strong, e.g. bromine, hydrogen peroxide, nitrogen dioxide, potassium nitrate), reducing agents (strong, e.g. aluminum carbide, chlorosilane, hydrogen phosphide, lithium hydride), water reactive substances (e.g. acetic anyhdride, alkyl aluminum chlori
Decomposition
Carbon monoxide, carbon dioxide, acrid smoke and fumes.

Fire.
Flash Point,°C
124
Autoignition, °C
229
Upper exp. limit, %
10.8
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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Water or foam may cause frothing. Use extinguishing media most appropriate for the surrounding fire.
Fire potential
This chemical is combustible.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OEL-UNITED KINGDOM:TWA 23 ppm
Poison_Class
4
Exposure effects
Liver and kidney lesions and damage.
   Ingestion
May cause liver and kidney damage. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. Human fatalities have been reported from acute poisoning. May cause
   Inhalation
May cause respiratory tract irritation. Inhalation of heated or misted form may cause pulmonary edema.
   Skin
May cause mild skin irritation. May be absorbed through the skin.
   Eyes
May cause mild 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.
   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. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. 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.

Transport.
USCG CHRIS Code
DEG
 
40 Glycol ethers
HS Code
2909 41 00
 
Std. Transport #
4925218
 
IMO Chemical Code
18
IMO Pollution Category
D