Recent content by GeorgeOh

It is unlikely. There may be other volatiles in the resin that will be distilled off, but these should be eliminated prior to adding glycerin or other polyhydric alcohol.

Refluxing Glycerin I appreciate the assistance from individuals in this forum, but I have one more question regarding this setup: In the initial runnning of the resin, I must allow volatiles to escape from the reaction, but when adding the glycern or other polyhydric alchohol, I must allow...

Stirrer Assembly Do you have recommendations for the type of stirrer assembly I should use with this setup? I have a Teflon bearing and glass rod, but I am concerned that the temperature of the flask will be too high for the Teflon bearing. I am thinking that a glass bearing will be more...

Thank you for the valuable suggestions -- they make a lot of sense. Apiezon H Grease is expensive, but I imagine it should last awhile.

I am trying to create esters from natural resins (Copal, amber, dammar, etc.). This is based on chemistry from the first half of the 20th century. The esterified resins were used in making varnishes, before the advent of acrylic and other synthetic resins. To esterify the natural resins, I...