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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Environmental fate & pathways

Henry's Law constant

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Endpoint:
Henry's law constant
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Calculation based on a measured water solubility value and vapour pressure
Principles of method if other than guideline:
Calculated from the measured water solubility and vapour pressure
GLP compliance:
no
Key result
H:
0.001 Pa m³/mol
Temp.:
25 °C
Executive summary:

Henry's law constant for the analogue substance was calculated to be 8.7E-04 Pa.m3/mol at 25 °C based on experimental water solubility and vapour pressures . This value indicates a low rate of volatilisation from surface water is expected.

Endpoint:
Henry's law constant
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: analogue substance
Justification for type of information:
Calculation of Henry’s Law constant is not required because available data indicate that structural variation does not influence test results or adverse effect profile (see read-across and category justifications attached in Section 13).
Reason / purpose for cross-reference:
read-across source
H:
0.001 Pa m³/mol
Temp.:
25 °C

Description of key information

Henry's law constant for the analogue substance was calculated to be 8.7E-04Pa.m3/mol at 25 °C based on experimental water solubility and vapour pressures. This value indicates a low rate of volatilisation from surface water is expected.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.001
at the temperature of:
25 °C

Additional information

There is no specific data on the substance. Read-across to the physico-chemical properties of Hexanoic acid, 3,5,5-trimethyl-, 1,1'-[2-ethyl-2-[[(3,5,5-trimethyl-1-oxohexyl)oxy]methyl]-1,3-propanediyl] ester (EC 613-848-7, CAS65870-94-2) is applicable based on the similarity in structure and physico-chemical properties. The justification for read-across is presented in Section 13 Assessment reports- Read-across justification.

Henry's law constant for the analogue substance was calculated to be 8.7E-04 Pa.m3/mol at 25 °C based on experimental water solubility and vapour pressures . This value indicates a low rate of volatilisation from surface water is expected.