Registration Dossier
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EC number: 602-927-1 | CAS number: 123312-89-0
Henry's Law constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- Henry's law constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- 20 Mar 1995
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The volatility of the test item was estimated by calculation of the Henry's law constant. The classification is achieved by comparing the results for the test item with known compounds.
- GLP compliance:
- no
- Key result
- H:
- 0 Pa m³/mol
- Temp.:
- 20 °C
- Remarks on result:
- other: Atm. pressure not reported
- Conclusions:
- The Henry's Law Constant of the test substance is calculated to be 7.80E-08 Pa m3/mol. Comparing the results of the test substance with known chemicals (see table in "Any other information on results incl. tables" section) leads to a classification of the test item in the upper section of the low volatile range.
- Executive summary:
The Henry's Law Constant for the substance was calculated to be 7.80E-08 Pa m3/mol from the experimentally determined physico-chemical parameters (vapour pressure, water solubility). Based on this result, the test item is considered to have low volatility compared with other chemicals.
Reference
Partitioning of the test item and known chemicals in water and air after volatilization
Chemical |
M g/Mol |
Solubility mg/L |
Vapour pressure at 20 C° |
H Pa m3/Mol |
C-water/C-air |
Range |
Diedrin |
381.0 |
2.50 10-1 |
1.32 10-5 |
0.020 |
121415 |
Low volatility |
Lindane |
290.9 |
7.30 |
1.22 10‑3 |
0.048 |
50303 |
Middle volatility |
DDT |
354.5 |
1.20 10-3 |
1.32 10-5 |
3.891 |
626 |
Middle volatility |
Naphthalene |
128.0 |
330 |
30.4 |
117.905 |
21 |
High volatility |
Biphenyl |
154.0 |
7.50 |
7.60 |
156.041 |
16 |
High volatility |
Test Item |
217.2 |
2.70 102 |
9.70 10-8 |
7.80 10-8 |
3.12 1010 |
|
Description of key information
The Henry's Law Constant of the test substance is calculated to be 7.80E-08 Pa m3/mol.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
