Dichlorodifluoromethane

Henry's Law constant

Administrative data

Endpoint:

Henry's law constant

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Data source

Reference

Reference 1

Reference Type:

review article or handbook

Title:

Compilation of Henry’s law constants (version 4.0) for water as solvent.

Author:

Sander R.

Year:

2015

Bibliographic source:

Atmos. Chem. Phys., 15:4399–4981 (www.atmos-chem-phys.net/15/4399/2015/)

Reference 2

Reference Type:

publication

Title:

Solubilities of chlorofluorocarbons I I and 12 in water and seawater

Author:

Warner MJ, and Weiss RF

Year:

1985

Bibliographic source:

Deep-Sea Research, 32(12):1485-1497

Results and discussion

Henry's Law constant H

Henry's Law constant H 1

Key result

H:

34 800 Pa m³/mol

Temp.:

298.15 K

Henry's Law constant H 2

H:

0.343 atm m³/mol

Temp.:

25 °C

Any other information on results incl. tables

The publication by Sander (2015) compiles a number of measured values for the Henry's Law Constant of CFC-12 expressed as solubility in mol/m3.Pa.

Henry's Law volatility constant K_H is obtained as 1/H^cp

Henry solubility (defined as c/p) mol /m³.Pa for water as solvent

H^cp at standard temp. (mol/m^3.Pa)	source
1.3×10−4	Hiatt (2013)
3.0×10−5	Reichl (1995)
2.9×10−5	Scharlin and Battino (1994)
3.1×10−5	Munz and Roberts (1987)
2.9×10−5	Warner and Weiss (1985)*
2.3×10−5	Wisegarver and Cline (1985)
2.9×10−5	Park et al. (1982)
2.5×10−5	Pearson and McConnell (1975)

* experimental value used in EpiWeb 4.1 models is retained as key value

Applicant's summary and conclusion

Conclusions:

Henry's Law Constant was found ca. 34800 Pa.m3/mol