I am doing a project where I heat up a container (around 500ml) filed with castor oil at room temperature. I want to add a pressure/safety valve that opens up when the castor oil reaches around 300 degrees Celsius (boiling temperature). In order to get the right valve I have to know how much the pressure increases with in that process. How can I calculate this? And were can I find the required data?
Is there something else I need to consider?
EDIT: Like I have experienced, it seems impossible to find the required data. What if I used mineral oil instead?