Difficult to find a pure sample. Due to rust, aging samples are unable to conduct electricity as easily as young samples. Also tends to form strong bonds with itself. Neutralize by saturating with alcohol. Possibly good methane source.
Good samples are able to produce large quantities on command.
In the absence of WO, this element rapidly decomposes and begins to smell. I don't believe in icons. Sir, what you described is a faulty power supply. For the next ten minutes, in spite of the technician's efforts to explain the problem and its solution, the customer adamantly insisted that he was right. Well, that's your problem.