You will need
- potassium permanganate, water, kettle, glassware
Instruction
1
First things first, you should know: never dissolve potassium permanganate in pans, woks, basins or other kitchen utensils. Potassium permanganate will they leave their traces, and the material of the cookware may begin to react with the solution (don't forget the potassium permanganate is a salt, that is a chemical compound, and quite an active lead in different environments). For our purposes, the best cookware made of transparent glass, for example, a Bank or a liter bottle of juice.
2
Now we have to correctly calculate the proportions. Weigh the potassium permanganate will likely not have to: it is sold in packages which have already identified a mass of 5 g, 10 g, 15 g and so on. For every 5 grams of potassium permanganate is taken and 95 grams of water. That is, if we need 1 liter of a 5% strength solution, you will need 10 packs of potassium permanganate for each 5 grams and 950 grams of water.
3
Now the water should be warmed in warm water it dissolves faster. Given the fact that the solution is likely to be needed for any medical or hygienic purposes, the optimal water temperature is 35-40 degrees, this temperature is easily determined fingers. Heated water is poured into the prepared sterile jar, then pour the potassium permanganate over there. Pouring water into a dry substance is not necessary - this is a General rule the preparation of solutions. For mixing in laboratories using the glass rod, but in domestic conditions it is possible to stir a disposable plastic spoon, a metal for these purposes should not be used.