| Chemical |
Triethylamine |
| CAS-number : |
121-44-8 |
| |
| Synonyms : |
| (diethylamino)ethane |
| Ethanamine, N,N-diethyl- |
| N,N-diethylethanamine. |
| Trietyyliamiini |
| |
| Sumformula of the chemical : |
| C6H15N |
| EINECS-number : |
| 2044694 |
| |
| Uses : |
Catalytic solvent in chemical synthesis; accelerator activators
for rubber; wetting, penetrating, and waterproofing agents of
quaternary ammonium types; curing and hardening of polymers
(e.g., corebinding resins); corrosion inhibitor; propellant.
|
| |
| State and appearance : |
Colourless liquid.
|
| |
| Odor : |
Strong ammoniacal odour.
Characteristic: quality: fishy, amine.
Hedonic tone: unpleasant to pleasant.
T.O.C.: abs. perc. lim.: < 0.09 ppm;
50 % recognition: 0.28 ppm;
100 % recognition: 0.28 ppm;
O.I. 100 % recognition: 253.6 (Verschueren 1986).
Quality: fishy, amine
Hedonic tone: unpleasant to pleasant
Threshold odour concentration
absolute: <0.09 ppm
50 % recognition: 0.28 ppm
100 % recognition: 0.28 ppm
Odour index 100 % recognition: 253 571
(Hellman & Small 1974)
|
| |
| Molecular weight : |
101.22 |
| |
| Spesicif gravity (water=1) : |
| 0.723 |
25/4 °C |
| |
| Vapor density (air=1) : |
| 3.48 |
|
| |
| Conversion factor, 1 ppm in air=_mg/m3 : |
| 4.29 |
mg/m3 |
| |
| Conversion factor, 1 mg/m3 in air=_ppm : |
| 0.24 |
ppm |
| |
| Vapor pressure, mmHg : |
| 50 |
20 °C |
| |
| Water solubility, mg/l : |
| 15000 |
20 °C |
| 19700 |
65 °C |
| 82000 |
MITI 1992 |
| |
| Melting point, °C : |
| -115 |
|
| -144.75 |
MITI 1992 |
| |
| Boiling point, °C : |
| 89 |
89 - 90 |
| 90 |
|
| 89.4 |
MITI 1992 |
| |
| Flashing point, °C : |
| -6.67 |
|
| |
| pKa : |
| 10.76 |
Sangster 1989 |
| |
| Log octanol/water coefficient, log Pow : |
| 1.44 |
|
| 1.45 |
Sangster 1989 |
| 0.87 |
MITI 1992 |
| |
| Volatilization : |
Relative volatility (nBuAc=1) = 5.60
|
| |
| Other physicochemical properties : |
Soluble in water and alcohol.
Hazard: Flammable, dangerous fire risk, explosive limits in air
1.2 - 8.0 %.
Toxic by ingestion and inhalation, strong irritant
to tissue.
|
| |
| Total degradation in water : |
Biodegradation:
25-34% by BOD
period: 28d
substance: 30 mg/l
sludge 100 mg/l
(MITI 1992)
|
| |
| Other information of degradation : |
Impact on biodegradation processes:
inhibitIon of degradation of glucose by Pseudomonas fluorescens
at: 600 mg/l; inhibition of degradation of glucose by
Escherichia coli at: < 1000 mg/l (Verschueren 1983).
NH3 oxidation by Nitrosomonas sp.:
at 100 mg/l: 35 % inhibition; at 127 mg/l: appr. 50 %
inhibition (Verschueren 1983).
Biodegradation; degradation by Aerobacter; 200 mg/l at 30 °C:
parent: 100 % in 28 hr; mutant: 100 % 11 hr (Verschueren 1986). |
| |
| Bioconcentration factor, fishes : |
| 0.5 |
< 0.5, 6w, Cyprinus carpio, conc 0.5 mg/l, |
| 4.9 |
< 4.9, 6w, Cyprinus carpio, conc 0.05 mg/l, |
| |
| LD50 values to mammals in oral exposure, mg/kg : |
| 460 |
orl-rat, Sweet 1987 |
| 546 |
orl-mus |
| |
| LD50 values to mammals in non-oral exposure , mg/kg : |
| 570 |
skn-rbt, Sweet 1987 |
| |
| LC50 values to mammals in inhalation exposure, mg/m3 : |
| 6000 |
ihl-mam, Sweet 1987 |
| |
| LCLo values to mammals in inhalation exposure, ppm : |
| 1000 |
ihl-gpg, 4hr, Sweet 1987 |
| 1000 |
ihl-rat, 4hr |
| |
| TDLo values to mammals in oral exposure, mg/kg : |
| 6.9 |
orl-rbt, 1-3d preg, eff. on fertility |
| |
Sweet 1987 |
| |
| Health effects : |
Skin and eye irritation data:
skin, rbt, 10 mg, 24 hr, open, mild;
skin, rbt, 365 mg, open, mild;
eye, rbt, 250 mg, open. severe;
eye, rbt, 50 ppm, 30 D-I, severe (Sweet 1987).
|
| |
| Mutagenicity : |
Mutation data: cytogenic analysis; rat, ihl, 1 mg/m3 (Sweet
1987).
|
| |
| LD50 values to birds in oral exposure, mg/kg : |
| 100 |
>100, orl-Agelaius phoeniceus |
| |
Schafer et al. 1983 |
| |
| Effects on microorganisms : |
Escherichia coli: no effect; 1 g/l (Verschueren 1986).
|
| |
| LC50 values to fishes, mg/l : |
| 50.7 |
48hr, Oryzias latipes, MITI 1992 |
| |
| Other information of water organisms : |
Fish: Semolitus atromaculatus (Creek chub), LD100, 80 mg/l, 24
hr, in Detroit river water (Verschueren 1986).
|
References |
| 1673 | Hellman, T.M. & Small, F.H. 1974.
Characterization of the odour
properties of 101 petrochemicals using sensory methods.
J.
Air
Pollut.
Control Assoc. 24: 979 - 982. |
| 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.
|
| 3104 | Sangster, J. 1989.
Octanol-water partition coefficients of
simple organic compounds.
J.
Phys.
Chem.
Ref.
Data, Vol 18, No.
3: 1111 - 1229. |
| 1743 | Schafer , E.W.Jr., Bowles, W.A.Jr., Hurlbut, J. 1983.
The acute
oral toxicity, repellency and hazard potential of 993 chemicals to
one or more species of wild and domestic birds.
Arch.
Environ.
Contam.
Toxicol. 12: 355 - 382. |
| 2101 | Sweet, D. 1987.
Registry of toxic effects of chemical
substances 1985 - 1986 edition.
U.S.
Department of health and
human services. |
| 1468 | Verschueren, K. 1983.
Handbook of environmental data of
organic chemicals.
Van Nostrand Reinhold Co.
Inc., New York.
1310 s. |
