Registration Dossier
Registration Dossier
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EC number: 243-815-9 | CAS number: 20427-59-2
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Justification for type of information:
- According to REACH Annex VII, section 7.5., if the melting point is between 200°C and 300°C, a value based on a measurement or a recognised calculation method is sufficient.
Copper dihydroxide decomposed before the melting point was reached (Marsh, 2000). Decomposition took place at an onset temperature of 229°C. Accordingly, a calculation has been done to estimate the vapour pressure of copper dihydroxide at 25°C.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
- Principles of method if other than guideline:
- Computer-based estimation method, MPBPWin, version 1.44, US Environmental Protection Agency (2000).
The estimation method described is designed to be compatible with the following internationally accepted guidelines and recommendations:
- Commission Regulation (EC) No 440/2008 of 30 May 2008, Part A: Methods for the determination of physico-chemical properties.
- OECD Guidelines for Testing of chemicals.
Test material
- Reference substance name:
- Copper dihydroxide
- EC Number:
- 243-815-9
- EC Name:
- Copper dihydroxide
- Cas Number:
- 20427-59-2
- Molecular formula:
- CuH4O2
- IUPAC Name:
- copper(2+) dihydroxide
Constituent 1
Results and discussion
Vapour pressure
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
Any other information on results incl. tables
Inorganic compounds were not included in the training data set for the methodology utilised in the estimation program, and are stated to be outside the estimation domain. As the test item is an inorganic compound, the estimated value for the test item has to be treated with caution.
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of copper dihydroxide is estimated to be 1.96E-16 Pa at 25°C.
- Executive summary:
The vapor pressure of copper dihydroxide is estimated to be 1.96E-16 Pa at 25°C.
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