acacian wrote:Do you find that using shellite now that more often than not small droplets of a watery substance precipitate out and at the end they will sit there as water blobs in the final extract? Even using a clean tree like narrow phyllode acuminata has behaved this way.. makes me not want to use shellite anymore .. I wish I could pinpoint the problem!
Unfortunately around here there is no good toluene which is my preferred solvent. Back to xylene I guess
Great to see this being asked here as it had stumped me for a while too - I have come to the tentative conclusion that it is humidity from the environment precipitating our in the plate as it only seems to happen on warm days and more so when there is a fan involved. One solution for this is to scrape it all up anyway and use a tissue to dab up any watery blobs from the results - as the water content lessens the gooey results will start to harden.
Although Shellite has varied a lot over the years, I think a side by side with industrial grade Shellite will be worth it as they are not much different in price.