Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-026-8 | CAS number: 131-53-3
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-09-14 - 2017-12-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study under GLP conditions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2017-03-23
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- Dioxybenzone
- EC Number:
- 205-026-8
- EC Name:
- Dioxybenzone
- Cas Number:
- 131-53-3
- Molecular formula:
- C14H12O4
- IUPAC Name:
- 2-(2-hydroxybenzoyl)-5-methoxyphenol
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- Main component: 2,2`-Dihydroxy-4-methoxybenzophenone
Molecular formula C14H12O4
Appearance: yellow powder
Batch: CM70314A1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 0 hPa
- Remarks on result:
- other: Extrapolated
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Remarks on result:
- other: Extrapolated
Any other information on results incl. tables
Reference items
Dicamba: 1.57x10 -3 Pa at 25 °C
Tetradecane: 2.66 Pa at 25 °C
The vapour pressure measurements of the test item are summarised in the following table:
Test temperature t(°C) |
Test temperature T(K) |
1/T(K-1) |
Experimental vapour pressure P(Pa) |
Log P (Pa) |
50 |
323.15 |
3.095 x 10-3 |
7.411 x 10-3 |
-2.130 |
45 |
318.15 |
3.143 x 10-3 |
3.009 x 10-3 |
-2.522 |
55 |
328.15 |
3.047 x 10-3 |
1.716x 10-2 |
-1.766 |
60 |
333.15 |
3.002 x 10-3 |
3.132x 10-2 |
-1.504 |
log P = - 7250.0283/T + 20.2895
Applicant's summary and conclusion
- Conclusions:
- Based on an extrapolation from vapour pressure measured above 50 °C, the test item has a VP of 3.6x10-7 hPa at 20 °C and 9.4x10-7 hPa at 25 °C.
- Executive summary:
Based on an extrapolation from vapour pressure measured above 50 °C, 2,2'-Dihydroxy-4 -methoxybenzophenone has a VP of 3.6x10-7 hPa at 20 °C and 9.4x10-7 hPa at 25 °C.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
