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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Study period:
1982
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: public available literature

Data source

Reference
Reference Type:
publication
Title:
Handbook of Chemical Property Estimation Methods
Author:
Lyman, W. J. et al.
Year:
1982
Bibliographic source:
McGraw- Hill Book Company

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Methenamine
EC Number:
202-905-8
EC Name:
Methenamine
Cas Number:
100-97-0
Molecular formula:
C6H12N4
IUPAC Name:
1,3,5,7-tetraazatricyclo[3.3.1.1³,⁷]decane
Test material form:
solid: crystalline

Results and discussion

Henry's Law constant H
H:
0 Pa m³/mol
Temp.:
20 °C
Atm. press.:
1 Bar

Applicant's summary and conclusion

Conclusions:
The Henry’s law constant of 1.051 exp(-05) Pa * m³/mol, calculated (according to Lyman et al., 1982) from the physical chemical properties, indicates that the substance is non-volatile from aqueous solutions.
Executive summary:

The Henry’s law constant of 1.051 * 10-5 Pa * m³/mol, calculated (according to Lyman et al., 1982) from the physical chemical properties, indicates that the substance is non-volatile from aqueous solutions.