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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

Diss Factsheets

Administrative data

Endpoint:
Henry's law constant
Type of information:
other: calculation
Adequacy of study:
supporting study
Study period:
2010

Data source

Reference
Reference Type:
other: calculation
Title:
Henry' constant Law calculation
Author:
Guidance on information requirements and chemical safety assessment (IR & CSA) Chapter 16 "Environmental exposure estimate"
Year:
2010

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Henry's Law Constant equation: (vapour pressure*molecular weight)/(water solubility*1000)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-methylpentan-2-one
EC Number:
203-550-1
EC Name:
4-methylpentan-2-one
Cas Number:
108-10-1
Molecular formula:
C6H12O
IUPAC Name:
4-methylpentan-2-one
Details on test material:
Vapour pressure: 2640 Pa
Water solubility: 14.1 g/l at 20°C
Molecular weight: 100.16 g/mol

Results and discussion

Henry's Law constant H
H:
18.75 Pa m³/mol
Temp.:
20 °C
Atm. press.:
1 013.3 hPa
Remarks on result:
other: Standard temperature and pressure assumed.

Applicant's summary and conclusion

Conclusions:
The Henry's Law constant for tetrahydrothiophene has been calculated to be 18.75 Pa/m3.mol.
Executive summary:

The Henry's Law constant for MIBK has been calculated to be 18.75 Pa/m3.mol.