ksj_david

by no temperature, i meant no heating sry. anywayz i think my CO2 humidity is zero.. i'll try to increase it. thanks for the BIG BIG help!

thanks alot. I appreciate it. It turns out that I wanted to find out the solubility of CO2 in water. So, ideally I want my droplet of water increase in volume due to dissolved CO2 ( which is absorbed by my little droplet) my droplet is fine during 600psi with NO TEMPERATURE, but if i increase temperature in slightest bit, it would simply evaporate. the phase diagram of water tells me that my droplet should remain liquid, not vapor (room temperature up to 155). Now I need some kind of suggestion to prevent evaporation and keep my droplet (eg. freezing my droplet, increasing the initial volume of my droplet....)

Now there is alot of studies done in solubility of CO2 gas IN water, however I'm trying to get water solubility in CO2 environment, condition(155C, 600psi) so i get a sealed chamber, which is connected to a camera then get a drop of water in the tip which is focused by a camera. water drop seems fine when chamber is under 600 psi with no temperature, but then water simply dissappear when it is heating up to 155C. I don't quiet understand why water drop is gone so quickly (~5 second) because it is under some pressure. Im not convinced its evaporation.... anyone can explain the phenomena? or any suggestion to conserve my water drop so i can monitor its volume (PVT)