Registration Dossier
Registration Dossier
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EC number: 915-069-0 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- other: substitute value
- Adequacy of study:
- supporting study
- Vapour pressure:
- < 0 Pa
- Remarks on result:
- other: Assumption based on structure considerations and melting point
Reference
Substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" is an inorganic crystalline solid of clay mineral-like lamellar hydrocalumite-type. The melting point/freezing point exceeds 310°C (583 K). Differential scanning calorimetry (DSC) was used to evaluate the melting point. No departure from the base line of the heat flow record was observed that might indicate a melting process while the substance was heated up to and including a temperature of 310°C (583 K). According to REACH Regulation, Annex VII, 7.5, column 2, a study on vapour pressure does not need to be conducted if the melting point is >300°C. For CSA, a vapour pressure < 10exp-10 Pa at 25°C, the lower detection limit of standard methods (c.f. ECHA REACH TGD R.7a, R.7.1.5), is allocated as substitute value.
Description of key information
Not applicable
10exp-10 Pa at 25°C (lower detection limit of standard methods allocated as substitute value)
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
Substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" is an inorganic crystalline solid of clay mineral-like lamellar hydrocalumite-type. The melting point/freezing point exceeds 310°C (583 K). Differential scanning calorimetry (DSC) was used to evaluate the melting point. No departure from the base line of the heat flow record was observed that might indicate a melting process while the substance was heated up to and including a temperature of 310°C (583 K). According to REACH Regulation, Annex VII, 7.5, column 2, a study on vapour pressure does not need to be conducted if the melting point is >300°C. For CSA, a vapour pressure 10exp-10 Pa at 25°C, the lower detection limit of standard methods (c.f. ECHA Guidance R.7a, subchapter R.7.1.5 (2017)), is allocated as substitute value.
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.
