3 ms·
Does volatility imply constituents? A quick search shows that oxybenzone is a compound containing two carbon rings.
by netizen-936824 5y ago
Does volatility imply constituents?
A quick search shows that oxybenzone is a compound containing two carbon rings.
- purple_ferret 5y agoBenzene is used as a precursor for many solvents (in addition to being one itself). IIRC, many things are washed with benzene derivatives and that's where a lot of contamination concern is.
- asdff 5y agoIt sounds like manufacturers should just extend the time the substrate is on the rotovap to purge the benzene.
- rsfern 5y agoVolatility is more about vapor pressure, so how much a compound likes to evaporate, rather than structural components per se. I couldn’t find any vapor pressure data online , but the boiling temp of oxybenzone is about 70C higher than for benzene, so it’s probably somewhat less volatile. Oxybenzone: https://webbook.nist.gov/cgi/cbook.cgi?ID=C131577&Mask=4 https://webbook.nist.gov/cgi/cbook.cgi?ID=C131577&Mask=4 Benzene: https://webbook.nist.gov/cgi/cbook.cgi?ID=C71432&Mask=4#Thermo-Phase https://webbook.nist.gov/cgi/cbook.cgi?ID=C71432&Mask=4#Ther...
- netizen-936824 5y agoYes I am aware, I am implying that the original poster is not. Volatility does not imply constituents. The benzene could easily come from so many places, but the poster decided to pick out volatility as a qualifier? For reasons?