Registration Dossier
Registration Dossier
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EC number: 914-100-5 | CAS number: -
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
>401°C at standard pressure (see data waiving)
Key value for chemical safety assessment
Additional information
No technical measure is possible for the boiling point of potassic extracts, as the melting point is >401°C (see endpoint 4.2). Then the boiling point is also estimated to be >401 °C .
This estimation is consistent with the boiling point of each sulfate salts (K2SO4, Na2SO4 and CaSO4) that composes the reaction mass. According to the OECD SIDS dossier on each main constituents (see table below) their boiling point are between 884°C and 1698°C, well above 401°C.
| K2SO4, CAS :7778-80-5 | Na2SO4, CAS :7757-82-6 | CaSO4 ,CAS :7778-18-9 | |
| SIDS OECD references | SIDS Initial Assessment Report June, 2007 - Sulfate category (potassium magnesium sulfate: 17855-14-0;potassium sulfate: 7778-80-5; calcium sulfate: 7778-18-9) | SIDS Initial Assessment Report, 13 January 2005 on sodium sulfate 7757-82-6 | SIDS Initial Assessment Report June, 2007 - Sulfate category (potassium magnesium sulfate: 17855-14-0;potassium sulfate: 7778-80-5; calcium sulfate: 7778-18-9) |
| Boiling point | 1 698 °C at 1013 hPa (Weast, 1980-81) |
Decomposition occurs above 884°C (Ullmann, 2004) |
1193 at 1013 hPa (Weast, 1969) |
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