As soon as the chemical composition of water was established, people try to answer a question: "How to receive gas from water?" Hydrogen - combustible gas which can serve as alternative fuel. Today to receive it, let in small amounts, it is possible even in house conditions. For this purpose it is possible to use an electrolysis method.
It is required to you
- - graphite and iron electrode;
- - DC power source;
- - lithium, sodium or any other alkaline metal;
- - caustic soda;
- - water;
- - test tube.
Instruction
1. In the clean tank or capacity fill a little caustic soda, pour water. Caustic soda (sodium hydroxide) considerably improves electric conductance of water. Stir the received solution before full dissolution of soda.
2. Take two electrodes. In their role usual cores, one of which is made of metal, can act, and another - from graphite. Electrodes can be bought ready prepared or to make independently, for example, of a thick graphite core of a tailor's pencil.
3. Find a reliable source of a direct current. For receiving gas from water in house conditions will approach the simplest generator, the accumulator or a galvanic cell. Attach it to electrodes so that "plus" fell on graphite (it will be the anode), and "minus" - on a metal midstream (cathode).
4. To receive gas from water, include a direct current. In the space located around the cathode hydrogen will be emitted, and in the anode site oxygen is formed. Cover the cathode with the turned test tube or any capacity to collect hydrogen.
5. To receive gas, in particular, hydrogen from water, it is possible easier way. Pour in small capacity, it is better a test tube, pure. Throw a small piece of lithium, sodium or any other alkaline metal there. Sodium it is almost impossible to receive houses. It is possible to take lithium from lithium batteries, for example, of Energizer. You remember: potassium though it is alkaline too, it is better not to apply to receive gas from water. In the course of chemical reaction he is capable to ignite.
6. In operating time with alkaline metals it is necessary to observe the increased care: they are flying, caustic, fire-dangerous. Therefore before receiving gas from water by means of alkaline metals, surely put on means of protection: mask, gloves, protective apron and glasses.