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Henry's Law constant

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Endpoint:
Henry's law constant
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Original reference not available, only secondary literature
Principles of method if other than guideline:
Thermodynamic method
GLP compliance:
not specified
Specific details on test material used for the study:
- Name of test material (as cited in study report): 3-Nitrotoluene
- Analytical purity: no data
H:
14 other: M atm-1
Temp.:
25 °C
Executive summary:

Betterton, 1992


The Henry´s law constant (HLC) was measured in water at 25 °C with the thermodynamic method and reported by Deno and Berkheimer (1960) as 14 M atm-1.

Endpoint:
Henry's law constant
Type of information:
(Q)SAR
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
results derived from a (Q)SAR model, with limited documentation / justification
Principles of method if other than guideline:
HENRYWIN v.3.10, 2000, Bond-Method
GLP compliance:
no
H:
2.38 Pa m³/mol
Temp.:
25 °C

Bond-Method

Executive summary:

QSAR calculation (Bayer Industry Services, 2006):


The Henry's law constant's value was calculated with the software EPI Suite (HENRYWIN v.3.10, 2000). The QSAR calculation resulted in the following value (bond method): 2.38 Pa*m³/mol at 25°C.

Endpoint:
Henry's law constant
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Principles of method if other than guideline:
Thermodynamic method according to Brunner et al. (1990) and Piringer and Skoeries (1984).
GLP compliance:
not specified
Specific details on test material used for the study:
- Name of test material (as cited in study report): 1-Methyl-3-Nitrobenzene
- Analytical purity: no data
H:
0 dimensionless
Temp.:
25 °C

The dimensionless HLC is reported to be 0.00038, which corresponds to 0.94 Pa m3/mol.

Executive summary:

Altschuh, 1999


The Henry´s law constant (HLC) was measured at 25 °C with the thermodynamic method and HPLC/GC (thermodynamic method according to Brunner et al. (1990) and Piringer and Skoeries (1984)). The method consisted in using a concentration of o-toluidine of 200 mg/l. The dimensionless HLC is reported to be 0.00038 at 25 °C, which corresponds to 0.94 Pa m3/mol.

Description of key information

For transported isolated intermediates according to REACh, Article 18, this endpoint is not a data requirement. However, data is available for this endpoint and is thus reported under the guidance of "all available data".


Altschuh, 1999


The Henry´s law constant (HLC) was measured at 25 °C with the thermodynamic method and HPLC/GC (thermodynamic method according to Brunner et al. (1990) and Piringer and Skoeries (1984)). The method consisted in using a concentration of o-toluidine of 200 mg/l. The dimensionless HLC is reported to be 0.00038 at 25 °C, which corresponds to 0.94 Pa m3/mol.


Betterton, 1992


The Henry´s law constant (HLC) was measured in water at 25 °C with the thermodynamic method and reported by Deno and Berkheimer (1960) as 14 M atm-1.


QSAR calculation (Bayer Industry Services, 2006):


The Henry's law constant's value was calculated with the software EPI Suite (HENRYWIN v.3.10, 2000). The QSAR calculation resulted in the following value (bond method): 2.38 Pa*m³/mol at 25°C.

Key value for chemical safety assessment

Additional information