| Chemical |
1,2-dichloroethane |
| CAS-number : |
107-06-2 |
| |
| Synonyms : |
| 1,2-dikloorietaani |
| ethane dichloride |
| ethylene dichloride |
| etyleenidikloridi. |
| glycol dichloride |
| |
| Sumformula of the chemical : |
|
C2H4Cl2 |
| EINECS-number : |
| 2034581 |
| |
| Uses : |
Manufacturing of vinylchloride; manufacturing of
tetraethyllead; intermediate; insecticidal fumigant;
ingredient in cosmetics; petrol additive.
|
| |
| State and appearance : |
Colourless liquid.
|
| |
| Odor : |
Quality: sweet
Hedonic tone: unpleasant to neutral
Threshold odour concentration
absolute: 6.0 ppm
50 % recognition: 40.0 ppm
100 % recognition: 40.0 ppm
Odour index 100 % recognition: 2 037
(Hellman & Small 1974)
|
| |
| Molecular weight : |
98.96 |
| |
| Vapor pressure, mmHg : |
| 61 |
20°C |
| |
| Water solubility, mg/l : |
| 8690 |
20 °C |
| 8100 |
20 °C |
| 8800 |
25 °C, McConnell et al. 1975 |
| |
| Melting point, °C : |
| -35.4 |
|
| -35.36 |
Suntio et al. 1988 |
| |
| Boiling point, °C : |
| 83.5 |
|
| |
| Log octanol/water coefficient, log Pow : |
| 1.45 |
1.45 - 1.79, Sabljic 1987 |
| 1.79 |
|
| 2.82 |
Anon 1988 |
| 1.45 |
Banerjee et al. 1980 |
| 1.48 |
Hansch & Leo 1979 |
| |
| Henry's law constant, Pa x m3/mol : |
| 1000 |
Anon 1988 |
| 1107.1 |
calc., Dilling 1977 |
| 1125 |
exptl., Gossett 1987 |
| |
| Volatilization : |
Evaporation from water (1 ppm, 25 °C): 50 % after 29 min;
90 % after 96 min (Verschueren 1983).
Relative volatility (nBuAc=1) = 6.5
|
| |
| Mobility : |
84.04 % (air), 15.79 % (water), 0.17 % (sediment).
Equilibrium distribution:
mass %
air 99.97
water 0.03
solid 0.00
(Anon 1988)
|
| |
| Photochemical degradation in air : |
Photooxidation half-life in air:
122d - 12.2d, based upon measured rate data for the vapor phase
reaction with hydroxyl radicals in air (Howard 1991).
|
| |
| Hydrolysis in water : |
First-order hydrolysis half-life:
1.1yr, scientific judgement based upon rate constant at neutral
pH (0.63yr-1) (Howard 1991).
|
| |
| Half-life in air, days : |
| 122 |
122d - 12.2d, |
| 12.2 |
based upon photooxidation half-life in air. |
| |
Howard 1991 |
| |
| Half-life in soil, days : |
| 180 |
6mo - 100d, |
| 100 |
scientific judgement based upon estimated aqueous aerobic biodegradation half-life. |
| |
Howard 1991 |
| |
| Half-life in water, days : |
| 180 |
6mo - 100d, |
| 100 |
in surface water: scientific judgement based upon unacclimated grab sample of aerobic soil from ground water aquifers and acclimated river die-away rate data. |
| 360 |
12mo - 100d, |
| 100 |
in ground water: scientific judgement based upon unacclimated grab sample of aerobic soil from groun water aquifers and estimated aqueous aerobic biodegradation half-life. |
| |
Howard 1991 |
| |
| Aerobic degradation in water : |
Aerobic half-life:
6mo - 100d, scientific judgement based upon unacclimated grab
sample of aerobic soi from ground water aquifers and acclimated
river die-away rate data (Howard 1991).
|
| |
| Anaerobic degradation in water : |
Anaerobic half-life:
24mo - 400d, (Howard 1991).
|
| |
| Other information of bioaccumulation : |
Confirmed to be non-accumulative or low accumulative (Anon.
1987).
|
| |
| LD50 values to mammals in oral exposure, mg/kg : |
| 670 |
orl-rat, Lewis & Sweet 1984 |
| 489 |
orl-mus, - " - |
| 860 |
orl-rbt, - " - |
| |
| LD50 values to mammals in non-oral exposure , mg/kg : |
| 4886 |
skn-rbt, Lewis & Sweet 1984 |
| |
| LC50 values to mammals in inhalation exposure, ppm : |
| 1000 |
432 min., ihl-rat, Verschueren 1983 |
| |
| LDLo values to mammals in oral exposure, mg/kg : |
| 810 |
orl-man, Lewis & Sweet 1984 |
| 600 |
orl-mus, Lewis & Sweet 1984 |
| 2000 |
orl-dog, Lewis & Sweet 1984 |
| |
| LDLo values to mammals in non-oral exposure , mg/kg : |
| 500 |
scu-rat, Lewis & Sweet 1984 |
| 380 |
scu-mus |
| 1200 |
scu-rbt |
| 600 |
ipr-gpg |
| 175 |
ivn-dog |
| |
| LCLo values to mammals in inhalation exposure, mg/kg : |
| 5000 |
ihl-mus, Lewis & Sweet 1984 |
| |
| LCLo values to mammals in inhalation exposure, ppm : |
| 3000 |
7hr, ihl-pig, Lewis & Sweet 1984 |
| 3000 |
7hr, ihl-rbt |
| 1500 |
7hr, ihl-gpg |
| 1000 |
4hr, ihl-rat |
| |
| TDLo values to mammals in oral exposure, mg/kg : |
| 38 |
orl-mus, Lewis & Sweet 1984 |
| 18 |
orl-rat |
| 428 |
orl-hmn |
| |
| TDLo values to mammals in non-oral exposure , mg/kg : |
| 1120 |
skn-mus, Lewis & Sweet 1984 |
| |
| TCLo values to mammals in inhalation exposure, ppm : |
| 4000 |
ihl-hmn, Lewis & Sweet 1984 |
| |
| Carcinogenicity : |
NCI carcinogenesis bioassay completed: results positive; mus,
rat (Lewis & Sweet 1984).
|
| |
| Maximum longterm immission concentration in air for plants,mg/m3 : |
| 8 |
VDI 2306 |
| |
| Maximum longterm immission concentration in air for plants,ppm : |
| 2 |
VDI 2306 |
| |
| Effects on microorganisms : |
Toxicity threshold (cell multiplication inhibition test):
bacteria (Pseudomonas putida): 135 mg/l
(Bringmann & Kühn 1980a)
|
| |
| EC50 values to microorganism, mg/l : |
| 1100 |
15 min Microtox, Hermens et al. 1985 |
| |
| LOEC values to algae, mg/l : |
| 105 |
rpd,schr, Microcystis aeruginosa, |
| |
Bringmann & Kühn 1976 |
| |
| LC50 values to crustaceans, mg/l : |
| 220 |
srv,act, 48 hr, Daphnia magna, LeBlanc |
| |
1980 |
| 65 |
srv,act, 96 hr, Crangon crangon, Adema |
| |
1976 |
| |
-- |
| 268 |
48hr, unfed, Daphnia magna |
| 315 |
48hr, fed, Daphnia magna |
| |
USEPA 1984 |
| |
| EC50 values to crustaceans, mg/l : |
| 155 |
48hr, unfed, Daphnia magna |
| 183 |
48hr, fed, Daphnia magna |
| |
USEPA 1984 |
| |
| NOEC values to crustaceans, mg/l : |
| 10.6 |
10.6 - 20.7, 28d, Daphnia |
| 20.7 |
USEPA 1984 |
| |
| LC50 values to fishes, mg/l : |
| 106 |
srv,act, 7 d, Poecilia reticulata, |
| |
Könemann 1979 |
| 118 |
srv,act, 96 hr, Pimephales promelas, |
| |
Veith et al. 1983 |
| 430 |
srv,act, 96 hr, Lepomis macrochirus, |
| |
Buccafusco et al. 1981 |
| 185 |
srv,act, 96 hr, Gobius minutus, Adema |
| |
1976 |
| |
-- |
| 116 |
96hr, flow-through, Pimephales promelas |
| |
USEPA 1984 |
| |
-- |
| 136 |
96 hr, Pimephales promelas, Geiger et al. 1985 |
| |
| LOEC values to fishes, mg/l : |
| 0.059 |
grw,schr, Pimephales promelas, Benoit et |
| |
al. 1982 |
| |
| NOEC values to fishes, mg/l : |
| 0.029 |
grw,schr, Pimephales promelas, Benoit et |
| |
al. 1982 |
| |
-- |
| 29 |
29.0 - 59.0, 32d, Pimephales promelas |
| 59 |
USEPA 1984 |
| |
| Other information of water organisms : |
Toxicity threshold (cell multiplication inhibition test):
green algae (Scenedesmus quadricauda): 710 mg/l
protozoa (Entosiphon sulcatum): 1127 mg/l
(Bringmann & Kühn 1980a)
|
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