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Data bank of environmental chemicals     |     The Finnish Environment Institute (SYKE)
 


23.4.2024

Data bank of environmental properties of chemicals


Chemical
n-Nitrosodiethylamine
CAS-number :
55-18-5
 
Synonyms :
n-nitrosodietyyliamiini
 
Sumformula of the chemical :
C4H10N2O
EINECS-number :
2002261
 
Photochemical degradation in air :
Atmospheric photolysis half-life: 
4hr - 8hr, 
based upon measured rates for sunlight photolysis in water 
(Howard 1991).

Photooxidation half-life in air: 
3.7hr - 37hr, 
scientific judgement based upon estimated rate constant for 
reaction with hydroxyl radical in air (Howard 1991).
 
Photochemical degradation in water :
Aquatic photolysis half-life: 4hr - 8hr, 
based upon measured rates for sunlight photolysis in water 
(Howard 1991).
 
Half-life in air, days :
0.17  4hr - 8hr,
0.33  based upon measured rate for sunlight
  photolysis in water,
  Howard 1991
 
Half-life in soil, days :
20  20d - 6mo,
180  based upon aerobic soil die-away data,
  Howard 1991
 
Half-life in water, days :
0.17  4hr - 8hr,
0.33  in surface water, based upon measured rates for
  sunlight photolysis in water,
40  40d - 12mo,
360  in ground water, scientific judgement based upon
  estimated unacclimated aqueous aerobic
  biodegradation half-lives,
  Howard 1991
 
Aerobic degradation in water :
Aerobic half-life:
20d - 6mo, based upon aerobic soil die-away data (Howard 1991).
 
Anaerobic degradation in water :
Anaerobic half-life:
80d - 24mo, scientific judgement based upon etimated
unacclimated aqueous aerobic biodegradation half-lives
(Howard 1991).
 
LC50 values to fishes, mg/l :
775  96hr, Pimephales promelas
  Draper & Brewer 1979

References
359Draper, A.C. & Brewer, W.S. 1979. Measurement of the aquatic toxicity of volatile nitrosoamines. J. Toxicol. Environ. Health 5: 985.
3120Howard, 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.

 
 
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