Complete setup instructions and sample experiment included. The Hoffman Electrolysis Apparatus is used for the qualitative and quantitative study of the electrolytic decomposition of electrolytes such as water and hydrochloric acid. When fully assembled, this large demonstration device measures @24" in height. The unit consists of two vertical 50ml graduated glass tubes, with stopcocks at the top. The vertical tubes are joined by a bridging tube to a central reservoir. Each vertical tube is fitted with an economy platinum electrode that extends through a rubber stopper, so that only the platinum electrode comes in contact with the electrolyte. External connections are facilitated by two screw terminals (positive and negative) mounted on a cast iron base. The support stand is designed for safe and simple clamping. Unit comes complete with a padded storage box to help prevent glass breakage.
Requires a 6 - 12V low voltage D.C. power source for operation such as a battery or laboratory power supply (not included).