It is difficult to overestimate value of oxygen. Coming to cages and oxidizing organic matter, oxygen provides release of energy, necessary for activity. For ensuring comfortable activity of the person the oxygen content in air has to be about 21% that is not always true. So, residents of megalopolises are forced to breathe the air containing less than a half of this norm. At least, for improvement of the atmosphere of the house, it is possible to use simple methods of receiving oxygen in house conditions.
It is required to you
- * 0.5 l. waters;
- * wide nonmetallic bowl;
- * 2 tablets of the hydroperit;
- * potassium permanganate crystals;
- * potash (sodium) saltpeter;
- * spoon for heating.
Instruction
1. The most available way is as follows: put a bowl with water on a table and dissolve in it hydroperit tablets. For process acceleration previously they can be pounded.
2. As soon as hydroperit completely it will be dissolved, throw several crystals of potassium permanganate there, stir. Liquid will hiss and will begin to foam - allocation oxygen is followed by these phenomena.
3. The hissing termination, respectively, will mean the reaction termination. For its renewal you have to add one of components: liquid became brown - add the hydroperit and if color after the termination of hissing did not change - couple more of crystals of potassium permanganate. Over a bowl it is possible to breathe a little or just to put it in the room and to enjoy easier breath.
4. To receive oxygen, it is also possible to take potash (sodium) saltpeter (is on sale in shops for gardeners) and to heat it in a spoon. In this case oxygen will be emitted in the course of heating.