Chemical |
Ethyleneglycol |
CAS-number : |
107-21-1 |
|
Synonyms : |
1,2-dihydroksietaani |
1,2-dihydroxyethane |
1,2-etaanidioli |
1,2-ethandiol |
1,2-ethanediol |
2-hydroxyethanol. |
ethane-1,2-diol |
ethylene alcohol |
ethylene dihydrate |
ethyleneglycol |
etyleeniglykoli |
glycol |
glycol alcohol |
glykoli |
monoethylene glycol |
|
Sumformula of the chemical : |
C2H6O2
C2H6O2 |
EINECS-number : |
2034733 |
|
Uses : |
Solvent; antifreeze agent, heat transfer agents and in
polyester fiber and film manufacture.
|
|
Molecular weight : |
62.08 |
|
Vapor pressure, mmHg : |
0.0878 |
at 25°C, Riddick et al. 1986 |
|
Water solubility, mg/l : |
100000 |
> 100 000, MITI 1992 |
|
Melting point, °C : |
-13 |
|
-12.6 |
MITI 1992 |
|
Boiling point, °C : |
197.6 |
|
197.6 |
MITI 1992 |
|
Log octanol/water coefficient, log Pow : |
-1.36 |
Hansch & Leo 1985 |
|
Henry's law constant, Pa x m3/mol : |
0.0061 |
Howard 1990 |
|
Volatilization : |
Relativevolatility (nBuAc=1) = 0.01
|
|
Other physicochemical properties : |
Miscible; infinite.
|
|
Photochemical degradation in air : |
Photooxidation half-life in air:
3.5d - 8.3hr, based upon measured photooxidation rate constant
with ·OH in air (Howard 1991).
Ethylen glycol reacts with hydroxyl radicals in the atmosphere.
Based on a hydroxyl radical concentration of 1000000
molecules/cm3, a half-life of ethylene glycol is about
1 day in the atmosphere (Howard 1990).
|
|
Other reactions in atmosphere : |
Ethylene glycol reacts with hydroxyl radicals in the
atmosphere.
Based on a hydroxyl radical concentration of 1000000
molecules/cm3, a half-life of ethylene glycol is about 1 day in
the atmosphere (Howard 1990).
|
|
Photochemical degradation in water : |
Photooxidation in aqueous systems will not be significant
(Howard 1990).
Photooxidation half-life in water:
64.6yr - 267d, based upon measured photooxidation rate
constants with ·OH in water (Howard 1991).
|
|
Chemical oxygen demand, g O2/g : |
1.29 |
5 days, Bridie et al. 1979 |
|
Biochemical oxygen demand, g O2/g : |
0.47 |
5 days, Bridie et al. 1979 |
|
Half-life in air, days : |
3.5 |
3.5d - 8.3hr, |
0.35 |
based upon measured photooxidation rate constant in air. |
|
Howard 1991 |
|
Half-life in soil, days : |
12 |
12d - 2d, |
2 |
scientific judgement based upon aqueous aerobic biodegradation half-lives. |
|
Howard 1991 |
|
Half-life in water, days : |
12 |
12d - 2d, |
2 |
in surface water: scientific judgement based upon aqueous aerobic biodegradation half-lives. |
24 |
24d - 4d, |
4 |
in ground water: scientific judgement based upon aqueous aerobic biodegradation half-lives. |
|
Howard 1991 |
|
Aerobic degradation in water : |
Aerobic half-life:
12d - 2d, based upon grab sample, river die-away studies
(Howard 1991).
|
|
Anaerobic degradation in water : |
Anaerobic half-life:
48d - 8d, scientific judgement based upon aqueous aerobic
biodegradation half-lives (Howard 1991).
|
|
Total degradation in water : |
Ethylene glycol will readly biodegrade in water, half-life
several days.
It is not expected to adsorb to sediment.
(Howard 1990).
Biodegradation:
83-96% by BOD
period: 14d
substance: 100 mg/l
sludge 30 mg/l
(MITI 1992).
|
|
Other information of degradation : |
Degradation was essentially complete in <1 - 4 days although
100% theoretical biological oxygen demand may not be realized
for several weeks.
(Howard 1990).
In a river die-away test, degradation was completed in 3 days
at 20 °C and 5 - 14 days at 8 °C.
(Evans & David 1974).
|
|
Bioconcentration factor, fishes : |
10 |
3d, Golden ide, Freitag et al. 1985 |
|
Other information of bioaccumulation : |
Bioconcentration factor (algae):
190, 1d, Chlorella fusca (Freitag et al. 1985). |
|
LD50 values to mammals in oral exposure, mg/kg : |
5840 |
orl-rat |
|
-- |
1650 |
orl-cat, Sweet 1987 |
5500 |
orl-dog |
6610 |
orl-gpg |
7500 |
orl-mus |
4700 |
orl-rat |
|
LD50 values to mammals in non-oral exposure , mg/kg : |
5614 |
ipr-mus |
5010 |
ipr-rat |
1000 |
ipr-rbt |
3000 |
ivn-mus |
3260 |
ivn-rat |
2800 |
scu-rat |
9530 |
skn-rbt |
|
Sweet 1987 |
|
LDLo values to mammals in oral exposure, mg/kg : |
786 |
orl-hmn, Sweet 1987 |
398 |
orl-hmn |
|
LDLo values to mammals in non-oral exposure , mg/kg : |
3300 |
intramuscular-rat, Sweet 1987 |
5500 |
intramuscular-rbt |
|
-- |
2000 |
scu-cat, Sweet 1987 |
5000 |
scu-gpg |
2700 |
scu-mus |
|
TDLo values to mammals in oral exposure, mg/kg : |
7500 |
orl-mus, 6-15d preg. |
|
effects on embryo or fetus |
|
specific developmental abnormalities |
7500 |
orl-mus, 6-15d preg. |
|
specific developmental abnormalities |
84 |
orl-mus, 1-21d preg. |
|
effects on newborn |
88720 |
orl-mus, 7-14d preg. |
|
effects on fertility and newborn |
15 |
orl-mus, 6-15d preg. |
|
maternal effects, eff. on fertility |
50 |
orl-rat, 6-15d preg. |
|
specific developmental abnormalities |
10 |
orl-rat, 6-15d preg. |
|
specific developmental abnormalities |
12500 |
orl-rat, 6-15d preg. |
|
specific developmental abnormalities |
25 |
orl-rat, 6-15d preg. |
|
maternal effects, eff. on fertility |
|
eff. on embryo of fetus |
50 |
orl-rat, 6-15d preg. |
|
effects on fertility |
|
Sweet 1987 |
|
-- |
5500 |
orl-child, Sweet 1987 |
|
TCLo values to mammals in inhalation exposure, mg/kg : |
10000 |
ihl-hmn, Sweet 1987 |
|
Effects on microorganisms : |
Toxicity threshold (cell multiplication inhibition test):
bacteria (Pseudomonas putida): >10000 mg/l
(Bringmann & Kühn 1980a).
|
|
LOEC values to algae, mg/l : |
2000 |
rpd, schr, Microcystis aeruginosa |
|
Bringmann & Kühn 1976 |
|
LC50 values to fishes, mg/l : |
5000 |
> 5000, 24hr, Carassius auratus |
|
Bridie et al. 1979 |
|
-- |
49300 |
7d, Poelicia reticulata,Könemann 1979 |
|
Other information of water organisms : |
Toxicity threshold (cell multiplication inhibition test):
green algae (Scenedesmus quadricauda): >10000 mg/l
protozoa (Entosiphon sulcatum): >10000 mg/l
(Bringmann & Kühn 1980a).
|
References |
182 | Bridie, A.L. et al. 1979.
The acute toxicity of some
petrochemicals to goldfish.
Water Res. 13: 623. |
1680 | Bridie, A.L., Wolff, C.J.M. & Winter, M. 1979.
BOD and COD of
some petrochemicals.
Water Res. 13: 627 - 630. |
187 | Bringmann, G. & Kühn, R. 1976.
Vergleichende Befunde der
Schadwirkung wassergefährdender Stoffe gegen Bakterien
(Pseudomonas putida) und Blaualgen (Microcystis aeruginosa).
Gwf-Wasser-Abwasser 117(9). |
188 | Bringmann, G. & Kühn, R. 1980a.
Comparison of the toxicity
thresholds of water pollutants to bacteria, algae and
protozoa in the cell multiplication inhibition test.
Water
Res. 14: 231 - 241. |
3084 | Evans, W.
H. & David, E.
J. 1974.
Water Res. 8: 97 - 100. |
3005 | Freitag, D. et al. 1985.
Chesmosphere 14: 1589 - 1616.
|
2958 | Hansch, C and Leo, A.
J. 1985.
Medchem Project Issue No 26.
Claremont C.A.
Pomona College. |
2992 | Howard, P.
H. et al. 1990.
Handbook of Environmental Fate and
Exposure Data for Organic Chemicals.
Vol.
II: Solvents.
Lewis
Publishers, Inc.
Chelsea. pp 546. |
3120 | Howard, P.H., Boethling, R.S., Jarvis, W.F., Meylan, W.M. &
Michalenko, E.M., Handbook of Environmental Degradation Rates,
1991.
Lewis Publicers, Inc., Chelsea, Michigan, U.S.A.,
pp. 725.
|
761 | Könemann, W.H. 1979.
Quantitative structure-activity
relationships for kinetics and toxicity of aquatic pollutants and
their mixtures in fish.
Univ.
Utrecht, Netherlands. |
3105 | MITI 1992.
Biodegradation and bioaccumulation data of existing
chemicals based on the CSCL Japan.
Compild under the Safety
Division Basic Industries Bureau Ministry of International
Trade & Industry, Japan.
Edited by Chemicals Inspection &
Testing Institute, Japan.
|
2971 | Riddick, J.
A. et al. 1986.
Organic solvents: Physical
Properties and Methods of Purification, 4th Edit.
New York: J.
Wiley & Sons. |
2101 | Sweet, D. 1987.
Registry of toxic effects of chemical
substances 1985 - 1986 edition.
U.S.
Department of health and
human services. |