Registration Dossier
Registration Dossier
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EC number: 243-957-1 | CAS number: 20667-12-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Reference
Description of key information
Disilver oxide is an inorganic substance that forms a crystal lattice. Upon heating, it decomposes in the temperature range 230-300°C. It is scientifically not plausible that disilver oxide could exist in molecular form in the gas phase due to its solid state structure. Thus, the concept of vapour pressure, i.e. the saturation pressure above a solid or liquid does not apply. Disilver oxide is only slightly soluble in water and if it dissolves, it dissolves into ions, which cannot evaporate. In consequence, the testing for vapour pressure is waived for disilver oxide, since such testing would not provide any meaningful information on the substance, nor information applicable to the assessment of environmental fate or for any further animal or environmental studies.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
This is an inorganic non volatile substance. A very low value has been included for the exposure assessment.
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.
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