Convenient and Inexpensive Insulation for Fractional ...
(standard taper (19/22), 180 mm column length) packed with copper scouring pad. For less than $5 (USD), twenty of these cylindrical columns were insulated with pre-slit, tubular closed-cell polyethylene foam intended for insulating ¾ inch residential pipes. This insulation was cut into ~10 ½ inch segments to cover the fractionating column and distillation head as shown in . Figure 1. Using ...
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