If the pressure on the liquid differs from one atmosphere, the boiling point observed for the compound differs from that estimated for the pure compound. Thermally unstable compounds can not measure its boiling point. At that time, I need to apply reduced pressure distillation.

Have you ever seen chart above? If you set ruler one certain pressure and normal boiling point then you can get boiling point at certain pressure. Or you set ruler one certain pressure and boiling point at that pressure, you can get normal boiling point. This JAVA applet calculate these converted value.

If you are lucky enough your browser support old JAVA and proper setting of JAVA option, you will see the window like below.

If you can not see this window, please check browser's JAVA option or try other browser. Eventhough you fail. Give up this old IAVA verson. (This Applet is still running with Mac with FireFox browser. 2011.11.15)

I made HTML5 program for Boiling point estimation. If you are accessing this page with iPad (or HTML5 browser such as Chrome, Safari, FireFox4), please follow this link.

You can easily get Vapor Pressure temperature relationship with this program.