Registration Dossier
Registration Dossier
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EC number: 244-063-4 | CAS number: 20824-56-0
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
No experimental data is available for diammonium hydrogen ethylenediaminetetraacetate (CAS 20824-56-0). Read across to editic acid (CAS 60-00-4) was done instead. The vapour pressure of edetic acid was determined to be 2E-012 hPa at 25°C according to Riedel and Plank.
Key value for chemical safety assessment
- Vapour pressure:
- 0 hPa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure determined for the acid form of EDTA represents also a worst case (highest) value for its ammonium salts as it is believed that only the free acid can evaporate. In conclusion the value extrapolated for the free acid will also be used for the exposure calculations of the ammonium salts in the chemical safety report, reflecting a worst case assumption.
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