Registration Dossier
Registration Dossier
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EC number: 913-888-8 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure study was waived for the liquid reaction mass.
Considering the reliable OECD and EC guideline studies using the effusion method, the vapour pressure was determined to be 0.0762 Pa at 20°C for diammonium hydrogenorthophosphate and 0.00147 Pa at 20°C for ammonium dihydrogenorthophosphate, resulting in an overall vapour pressure of =0.0762 Pa for the solid reaction mass.
Key value for chemical safety assessment
Additional information
Liquid form:
The vapour pressure study was waived for the liquid reaction mass as it can be considered as water.
Solid form:
The vapour pressure of the solid reaction mass was assessed on the basis of the reliability 2 data on both constituents which are used in a weight-of-evidence approach.
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