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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: 1d test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2007

Materials and methods

Test guideline
Guideline:
other:
Principles of method if other than guideline:
Henri's law coefficients were measured using a stripping method taken by Mackat et al.(1979)
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
methylisothiocyanate
IUPAC Name:
methylisothiocyanate
Constituent 2
Chemical structure
Reference substance name:
Methyl isothiocyanate
EC Number:
209-132-5
EC Name:
Methyl isothiocyanate
Cas Number:
556-61-6
Molecular formula:
C2H3NS
IUPAC Name:
isothiocyanatomethane
Details on test material:
no data

Results and discussion

Henry's Law constant H
H:
0.011 - 0.11 other: atm.M-1
Temp.:
25 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: in dezionised water

Any other information on results incl. tables

The Henri's law of MITC is measured at 25°C in dezionised water, in 0.1 M NaCl and 0.20 M NaCl, and in pH 4.0 and 83.0 buffered solution. The Henri's law of MITC did show dependance of ionic strength, increasing to 0.15 +/- 0.05 atm.M-1 at 0.2 M, but did not appeared to be pH-dependant.

Applicant's summary and conclusion

Conclusions:
Henri's law coefficients of MITC is 0.06+/- 0.05 atm.M-1 with a dependance with ionic strength, but not pH dependant.