| Chemical |
1,4-diaminobenzene |
| CAS-number : |
106-50-3 |
| |
| Synonyms : |
| 1,4-diaminobentseeni |
| p-phenylenediamine. |
| |
| Sumformula of the chemical : |
| C6H8N2 |
| EINECS-number : |
| 2034047 |
| |
| Photochemical degradation in air : |
Photooxidation half-life in air:
2.80hr - 0.28hr, based upon estimated photooxidation rate
constant with ·OH (Howard 1991).
|
| |
| Photochemical degradation in water : |
Photooxidation half-life in water:
72d - 1.3d, scientific judgement based upon photooxidation rate
constants with ·OH and RO2· for the aromatic amine class.
It is
assumed that p-Phenylenediamine reacts twice as fast as aniline
(Howard 1991).
|
| |
| Half-life in air, days : |
| 0.116 |
2.80hr - 0.28hr, |
| 0.0116 |
based upon estimated photooxidation half-lives in air. |
| |
Howard 1991 |
| |
| Half-life in soil, days : |
| 28 |
4w - 7d, |
| 7 |
scientific judgement based upon estimated aqueous aerobic biodegradation half-lives. |
| |
Howard 1991 |
| |
| Half-life in water, days : |
| 28 |
4w - 1.3d, |
| 1.3 |
in surface water: the high value is scientific judgement based upon estimated aqueous aerobic biodegradation half-life. The low value is based upon aqueous photooxidation half-life. |
| 56 |
8w - 14d, |
| 14 |
in ground water: scientific judgement based upon estimated aqueous aerobic biodegradation half-lives. |
| |
Howard 1991 |
| |
| Aerobic degradation in water : |
Aerobic half-life:
4w - 7d, scientific judgement based upon aerobic biological
screening studies (Howard 1991).
|
| |
| Anaerobic degradation in water : |
Anaerobic half-life:
16w - 28d, scientific judgement based upon estimated aquleous
aerobic biodegradation half-lives (Howard 1991).
|
| |
| LD50 values to birds in oral exposure, mg/kg : |
| 100 |
orl-Agelaius phoeniceus |
| 562 |
orl-Sturnus vulgaris |
| 100 |
orl-Coturnix coturnix |
| 422 |
orl-Passer domesticus |
| |
Schafer et al. 1983 |
| |
| Other information of water organisms : |
EC50 (60hr), 74 mg/l, rpd, Tetrahymena pyriformis (Schulz &
Applehans 1985).
|
References |
| 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.
|
| 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. |
| 1248 | Shultz, T.W. & Applehans, F.M. 1985.
Correlations for the acute
toxicity of multiple nitrogen substituted aromatic molecules.
Ecotox.
Environm.
Safety 10: 75 - 85. |
