| Chemical |
Morpholine |
| CAS-number : |
110-91-8 |
| |
| Synonyms : |
| dietyleeni-imidioksidi |
| Morfoliini |
| tetrahydro-1,4-oksatsiini |
| tetrahydro-1,4-oxazine |
| |
| Sumformula of the chemical : |
| C4H9NO |
| EINECS-number : |
| 2038151 |
| |
| Uses : |
Solvent.
|
| |
| Odor : |
Quality: fishy, amine
Hedonic tone: unpleasant
Threshold odour concentration
absolute: 0.01 ppm
50 % recognition: 0.07 ppm
100 % recognition: 0.14 ppm
0dour index 100 % recognition: 65 857
(Hellman & Small 1974)
|
| |
| Melting point, °C : |
| -4.9 |
MITI 1992 |
| |
| Boiling point, °C : |
| 128.9 |
|
| 128.9 |
MITI 1992 |
| |
| Volatilization : |
Relative volatility (nBuAc=1) = 0.80
|
| |
| Total degradation in water : |
Biodegradation:
0% by BOD
period: 14d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
|
| |
| Bioconcentration factor, fishes : |
| 0.3 |
< 0.3 - 0.65, 6w, Cyprinus carpio. conc 5 mg/l, |
| 0.65 |
|
| 2.8 |
< 2.8, 6w, Cyprinus carpio, conc 0.5 mg/l, |
| |
| Other information of bioaccumulation : |
Confirmed to be non-accumulative or low accumulative (Anon.
1987).
|
| |
| LD50 values to mammals in oral exposure, mg/kg : |
| 1050 |
orl-rat |
| |
| Effects on microorganisms : |
Toxicity threshold (cell multiplication inhibition test):
bacteria (Pseudomonas putida): 310 mg/l
(Bringmann & Kühn 1980a)
|
| |
| LC50 values to algae, mg/l : |
| 28 |
rpd, schr, Selenastrum capricornutum |
| |
Calamari et al. 1982 |
| |
| LOEC values to algae, mg/l : |
| 1.7 |
rpd, schr, Microcystis aeruginosa |
| |
Bringmann & Kühn 1976 |
| |
-- |
| 4.1 |
rpd, schr, Scenedesmus quadricauda |
| |
Bringmann & Kühn 1980a |
| |
| LC50 values to crustaceans, mg/l : |
| 119 |
24hr, Daphnia magna |
| |
Calamari et al. 1982 |
| |
| LC50 values to fishes, mg/l : |
| 350 |
96hr, Lepomis macrochirus |
| 400 |
96hr, Menidia audens |
| |
Dawson et al. 1977 |
| |
-- |
| 180 |
96hr, Salmo gairdneri |
| |
Calamari et al. 1980 |
| |
-- |
| 240 |
48hr, Oryzias latipes, MITI 1992 |
| |
| Other information of water organisms : |
Toxicity threshold (cell multiplication inhibition test):
green algae (Scenedesmus quadricauda): 4.1 mg/l
protozoa (Entosiphon sulcatum): 12 mg/l
(Bringmann & Kühn 1980a)
|
References |
| 1848 | Anon. 1987a.
The list of the existing chemical substances tested
on biodegradability by microorganisms or bioaccumulation in
fish body by Chemicals Inspection & Testing Institute.
Ministry
of International Trade and Industry, MITI.
Japan. |
| 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. |
| 231 | Calamari, D. et al. 1980b.
Influence of water hardness of
cadmium toxicity to Salmo gairdneri Rich.
Water Res.
(G.B.)
14: 1421. |
| 233 | Calamari, D., Galassi, S. & Setti, F. 1982a.
Evaluating
the hazard of organic substances on aquatic life: The
paradichlorobenzene example.
Ecotoxicol.
Environ.
Safety 6:
369 - 378. |
| 235 | Calamari, D., DaCasso, R., Galassi, S., Provini, A. & Vighi, M.
1982b.
Estimating the hazard of eight amines on aquatic
life.
In: Principles for the interpretation of the results of
testing procedures in ecotoxicology.
Report EUR 7549 EN/FR. |
| 234 | Calamari, D., DaCasso, R., Galassi, S., Provini, A. & Vighi, M.
1980.
Biodegradation and toxicity of selected amines on
aquatic organisms.
Chemosphere 9: 753. |
| 327 | Dawson, G.W., Jennings, A.L., Drozdowski, D. & Rider, E.
1977a.
The acute toxicity of 47 industrial chemicals to fresh
and saltwater fishes.
J.
Hazardous Materials 1 (1975/77): 303
- 318. |
| 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.
|
