GAS VOLTMETER (0852) Useful for electrolysis of small quantities, where gaseous evolutions accompany the process. Comprises a clear acrylic vessel mounted on an annular plastic ring and has a pair of platinum electrodes embedded at the bottom, which are connected to 4mm shielded sockets on the annular plastic ring. The gases evolved are collected in two miniature test tubes, included along with. The apparatus is fairly resistant to chemicals apart from organic solvents such as alcohols. Qty :