Electrochemistry

Electrochemistry ERPI Classroom Films Inc. 06:20:45 Animated drawing of sodium & cloride ions in solution as a battery w/ polarization taking place & giving flow of current to battery. Burning hydrogen w/ match in small tube. 06:22:20 Clorine gas bleaching cloth. Electrolysis process shown; then reversed to generate current. Negative & positive ions moving between tanks of chlorine & hydrogen to bring about electrical energy. 06:24:53 Large automobile battery. Diagram showing lead plates; discharging & recharging shown 06:25:53 Plating experiment shown w/ spoon to be silverplated. Diagram of movement of electrons. 06:27:10 Electrolytic refining of copper shown; men working in large factory warehouse. Diagram of process. Men removing large copper plate from plating cell. Aerial of Niagara Falls & ships at dock in Great Lakes’ Lake Ontario. Plating & electrochemical products: welding gas; steel ocean liner ship; railroad trains & planes of alloys made thru electrochemistry. Blimp, balloons. The End. Elementary Science Educational Film; Teaching Lecture; Chemistry; Gags; Dull; Boring; 1930s; Electricity;