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EC number: 695-101-5 | CAS number: 1275611-65-8
Henry's Law constant
Administrative data
- Endpoint:
- Henry's law constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Justification for type of information:
- An accepted calculation method is used.
Data source
Materials and methods
- Principles of method if other than guideline:
- Ratio vapour pressure and water solubility is used
- GLP compliance:
- no
Test material
- Reference substance name:
- N-C16-18-alkyl-(evennumbered, C18 unsaturated) trimethylpropane-1,3-diamine
- EC Number:
- 695-101-5
- Cas Number:
- 1275611-65-8
- Molecular formula:
- Not applicable
- IUPAC Name:
- N-C16-18-alkyl-(evennumbered, C18 unsaturated) trimethylpropane-1,3-diamine
- Test material form:
- liquid
- Details on test material:
- - Name of test material (as cited in study report): Diamine methylated
- Substance type:Amber liquid
- Physical state:Liquid
- Storage conditions of test material:At room temperature
- Content (certified): 100% (UVCB–Substance)
- Batch/Lot number:211401A Morris
- Expiration date of the lot/batch:24 March 2018
Constituent 1
- Specific details on test material used for the study:
- Vapour pressure and water solubility were determined with specific test material (see chapter 4)
Results and discussion
Henry's Law constant H
- H:
- 0 Pa m³/mol
- Temp.:
- 20 °C
Applicant's summary and conclusion
- Conclusions:
- An acceptable calculation is used to derive the Henry's Law constant. The water solubility was determined using the CMC as the test substance is a surfactant. The vapour pressure was determined using the A4 method.
- Executive summary:
An Henry's Law constant was calculated of 0.001205 Pa m3/mol using the ratio of the measured vapour pressure and observed CMC of the test substance.
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