chucknorris - 13-11-2012 at 21:00
Is it possible to distill DMSO at normal pressure without damaging it? I have contaminated DMSO that has salt and other solid impurities in it whose
boiling points are off scale compared to DMSO so I thought I just use brute force with high power gas burner and distill it straight.
I need to recover the salts solved in DMSO too, but they are not affected until temp reaches some 700 degrees. 
Nicodem - 14-11-2012 at 07:46
It depends on what it contains. DMSO slowly decomposes at its normal b.p. if it contains certain impurities. See Gaylord Chemical's TECHNICAL BULLETIN REACTION SOLVENT DIMETHYL SULFOXIDE (DMSO). Why don't you just vacuum distil it?