We decided to thoroughly examine all the chemical elements and their compounds?A good wish, I propose to begin with potassium.His data as the stuff you can learn, casting a practiced eye periodic system of Mendeleev.But have you heard anything about his connections?I am sure many in response to just shook his head.Today we consider the five most known compounds of metals: bromide, hydroxide, carbonate, nitrate, sulfate, and potassium cyanide.
1. Potassium bromide
Its formula - KBr.It has the form of a colorless crystalline solid.Also, some sources this potassium salt, a source of the residue (Br) which - hydrobromic acid, may be called potassium bromide.It is used as a source of bromide ions to form the silver compound with the same acid residue.Also, potassium bromide can relieve allergies that cause the fruit fly.Another study using a IR spectra.
2. potassium hydroxide
Its formula - KOH.In different sources it can be called potassium hydroxide solution, potassium hydroxide, caustic potash.It has the form of colorless crystals with high hygroscopic.Thanks to him, you can get potassium cyanide.This is known as alkaline food additive E525 and the electrolyte in alkaline batteries.Even with this compound produced methane, various potassium salts and fluorine-free zirconium hydroxide.
3. Potassium carbonate
Its formula - K2CO3.Also, the substance may be called caustic potash or potassium.Under normal conditions, it is represented as a white crystalline solid.With it is made liquid soap, hard glass or crystal.Yet it is a good fertilizer for agricultural crops.He is known as an additive of the anti in the concrete, as well as a preservative E501.
4. Potassium nitrate
Its formula - KNO3.Different sources can be found under the name of potassium, potassium nitrate, or Indian.Usually it is distributed in the form of small, non-volatile and slightly hygroscopic crystals, odorless.It is known as a valuable fertilizer, an important ingredient in pyrotechnic substances and devices, a strong oxidizing agent and the food additive E252.
5. Potassium sulfate
Its formula - K2SO4.Present in the form of colorless crystals.This is an excellent chlorine-free fertilizer.When producing glass, alum and high flux, the potassium salt is an essential ingredient.
6. potassium cyanide
Its formula - KCN, and this is perhaps one of the most dangerous substances.It can not explode or self-igniting, but the acid residue and potassium cyanide in one compound - without exaggeration, "lethal mix" for humans, plants and animals.Instant death occurs by ingestion of 1.7 mg / kg of the substance.But without him it is complete extraction of gold and silver from ores, electroplating many precious metals and jewelry making.
Conclusion
That's not all compounds of the metal.Bromide, hydroxide, carbonate, nitrate, sulfate and potassium cyanide - only a small part in a huge list of inorganic substances containing the element.And then there is his organic compounds - such as lactate, sorbate, fulminate, etc.etc.But that's another topic.
