Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Henry's Law constant

Currently viewing:

Administrative data

Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a (Q)SAR model, with limited documentation / justification, but validity of model and reliability of prediction considered adequate based on a generally acknowledged source

Data source

Reference
Reference Type:
publication
Title:
Generic models for evaluating the regional fate of chemicals.
Author:
Mackay D, Paterson S, Shiu WY
Year:
1992
Bibliographic source:
Chemosphere|24(6): 695-717

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Methacrylamide
EC Number:
201-202-3
EC Name:
Methacrylamide
Cas Number:
79-39-0
Molecular formula:
C4H7NO
IUPAC Name:
methacrylamide
Specific details on test material used for the study:
SMILES structure: CC(=C)C(N)=O

Results and discussion

Henry's Law constant H
H:
0.006 Pa m³/mol
Temp.:
25 °C
Atm. press.:
1 013 hPa

Applicant's summary and conclusion

Conclusions:
As Henry's law constant is well below 3*10 E-2 Pa*m³/mol volatization from water into air is considered negligible.