4-chloro-α,α,α-trifluorotoluene

Other distribution data

Administrative data

Endpoint:

other distribution data

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 1 August to 6 October 1983

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1983

Materials and methods

GLP compliance:

yes

Type of study:

volatility

Media:

water - air

Test material

Test material information

Constituent 1

Reference substance name:

4-chloro-α,α,α-trifluorotoluene

EC Number:

202-681-1

EC Name:

4-chloro-α,α,α-trifluorotoluene

Cas Number:

98-56-6

Molecular formula:

C7H4ClF3

IUPAC Name:

1-chloro-4-(trifluoromethyl)benzene

Test material form:

liquid: viscous

Details on test material:

- Analytical purity:99.8
- Lot/batch No.: 61077
- Other: technical grade PCBT Lot 633F02, 97.8%

Results and discussion

Any other information on results incl. tables

First order rate constants were calculated from plots of PCBTF concentration and oxygen concentration versus time. From these rate constants, the average ratio of the PCBTF volatilization rate to the oxygen reareation rate (K_PCBT/K_oxygen)was determined to be 0.64 ± 0.04.

Applicant's summary and conclusion

Conclusions:

The results predicts that the PCBTF volatilization rate from natural waters is slightly slower that than the oxygen reareation rate. The PCBTF volatilization rate from any natural water may also be calculated if the water reareation rate is known.