1) It will stand up to anything you would want to work with without a full body suit.
2) A coldfinger condenser has a much smaller cooling surface area exposed to the rising solvent vapors than a coil condenser having the same diameter and length. As far as I know, cold-finger condensers are mainly used for sublimation ("dry distillation"), and in some instances where you have another cooling fluid than water in the condenser, which is kept at sub-zero temperatures obviating the need for a large surface area, as the temperature difference is substantial.
I wouldn't reccommend using anything less than a coil condenser for Nitromethane Al/Hg reductions, as they are so intensely exothermic and really need all the cooling capacity you can afford.
