We all know that water conducts electricity well. For this reason, for example, you cannot swim in a thunderstorm, not wet hands to work with electrical appliances and so on. But does the water current actually?
In fact, the current holds no water, i.e. no water molecules and various impurities contained in it, in particular the ions of various mineral salts. Water is a great solvent, so naturally the water is always dissolved a lot of different impurities that cause the water in its natural state on the Earth is always conducting current.
But modern technology, if required, allow to completely clean the water from all the impurities, leaving in it only the water molecules. Water, purified from impurities, is called distilled. So distilled water is the electric current almost does not hold, but instead is a good insulator. Distilled water has a wide application in technology, medicine and industry and is produced in large quantities. It can even be bought in shops and pharmacies.
However, don't rely too heavily on the fact that the water is purified and therefore should not conduct current. The fact that distilled water requires special treatment, otherwise it will very quickly again will dissolve a lot of impurities and will again be the conductor. So in everyday life You will not succeed for too long to keep the water so clean that it was not conducting current.
All this means that security measures when working with electrical appliances and devices still can not be broken. Remember that the water that You can meet in everyday life, always has impurities and therefore is a good conductor of electric current.
