Registration Dossier
Registration Dossier
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EC number: 264-202-2 | CAS number: 63451-47-8
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure of the test item hydroxy(2-methylprop-2-enoato-O)zinc was determined at nine different temperatures (30, 45, 60, 75, 90, 105, 120, 135 and 150°C °C) following EU A.4 using the effusion method (weight loss).
The vapour pressures at 20 °C and at 25 °C were calculated from the regression equation.
Vapour pressure at 20 °C: 0.00000000124 Pa and at 25°C: 0.00000000286 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
Key study was performed in order to determine the vapour pressure of hydroxy(2-methylprop-2-enoato-O)zinc according to the OECD 104 and EU method A.4 using the effusion method (weight loss). Two temperatures could be evaluated as they showed reproducible and relevant weight loss. For these temperatures, 1/T was plotted against log (P).
The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 1.0000 as only two temperatures could be evaluated.
For the test item hydroxy(2-methylprop-2-enoato-O)zinc, the vapour pressures at 20 °C and at 25 °C were calculated from the regression equation: at 20 °C: 1.24* 10-09 Pa and at 25°C 2.86* 10-09 Pa.
This study was considered as reliable without restriction because it is comply to GLP and OECD Guideline 104 without any deviation
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