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


29.3.2024

Data bank of environmental properties of chemicals


Chemical
Trichlorofluoromethane
CAS-number :
75-69-4
 
Sumformula of the chemical :
CCl3F
EINECS-number :
2008923
 
Uses :
Blowing agent; aerosols.
 
Molecular weight :
137
 
Log octanol/water coefficient, log Pow :
2.4  Anon 1988
 
Henry's law constant, Pa x m3/mol :
11000  Anon 1988
12340  calc. Yaws et al. 1991
 
Mobility :
Equilibrium distribution:
        mass %
air     99.97
water    0.03
solid    0.00
(Anon 1988)
 
Photochemical degradation in air :
Photooxidation half-life in air:
14.7yr - 147yr,
based upon an measured rate data for the vapor phase reaction 
with hydroxyl radicals in air (Howard 1991).
 
Half-life in air, days :
5366  14.7yr - 147yr,
53655  scientific judgement based upon estimated
  aqueous aerobic biodegradation half-life,
  Howard 1991
 
Half-life in soil, days :
180  6mo - 1yr,
360  scientific judgement based upon estimated aqueous
  aerobic biodegradation half-life,
  Howard 1991
 
Half-life in water, days :
180  6mo- 1yr,
360  in surface water, scientific judgement based upon
  estimated aqueous aerobic biodegradation half-life,
360  12mo - 2yr,
720  in ground water, scientific judgement based upon
  estimated aqueous aerobic biodegradation half-life,
  Howard 1991
 
Aerobic degradation in water :
Aerobic half-life:
6mo - 1yr,
scientific judgement based upon acclimated aerobic screening 
test data (Howard 1991).
 
Anaerobic degradation in water :
Anaerobic half-life:
24mo - 4yr,
scientific judgement based upon estimated aqueous aerobic 
biodegradation half-life (Howard 1991).

References
2357Anon 1988. Concentrations of industrial organic chemicals measured in the environment: The influence of physico - chemical properties, tonnage and use pattern. Technical report no 29. European chemical industry ecology & toxicology centre, ECETOC. pp. 105.
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.
3030Yaws, C., Yang, H-C. & Pan, X. 1991. Henry's law constants for 362 organic compounds in water. Chemical Engineering. November. p 179 - 185.

 
 
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