Registration Dossier
Registration Dossier
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EC number: 201-946-9 | CAS number: 89-86-1
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16.04.2018 - 18.04.2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- effusion method: isothermal thermogravimetry
Test material
- Reference substance name:
- 2,4-dihydroxybenzoic acid
- EC Number:
- 201-946-9
- EC Name:
- 2,4-dihydroxybenzoic acid
- Cas Number:
- 89-86-1
- Molecular formula:
- C7H6O4
- IUPAC Name:
- 2,4-dihydroxybenzoic acid
- Test material form:
- solid
Constituent 1
Results and discussion
Vapour pressure
- Key result
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
Any other information on results incl. tables
The value of logvT at 25 °C was calculated from linear regression relationship:
logvT.25°C = 10.418 - 5532.9× 3.35402×10-3
logvT at 25 °C is -8.139438
logpT,25°C was calculated from the relationship determined by measuring reference items:
logpT,25°C = 4.1212 + 1.1267 × logvT,25°C
logpT at 25 °C -5.04950
pT at 25 °C 8.92×10-6Pa
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of beta-resorcylic acid at 25°C is 0,00000892 Pa.
- Executive summary:
The vapour pressure of the test item 2,4-dihydroxybenzoic acid, is 8.92×10-6 Pa at 25 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006).
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