➤ An intracellular element.

➤ It affects the functioning of muscle fibers, the central nervous system, and the transmission of nerve and muscle impulses. It maintains heart rate (Ca antagonist), diffuse pressure, muscle tone, stabilizes blood pressure, stabilizes gastric acidity, regulates water balance, kidney function and K-Na pump, cofactor of enzymes, causes resting and action potential.

➤ Participates in protein synthesis, carbohydrate metabolism.

➤ Contained in blood and cell protoplasm.

➤ Causes hyperkalemia, depresses myocardial contractility, causes arrhythmias and plegia, weakness, and sudden cardiac arrest.

➤ Hypokalemia accompanied by unstable psychoemotional state, chronic fatigue, seizures, cardiovascular disease, swelling of the extremities, somnolence, dizziness, and glucosuria.

➤ KCl (potassium chloride) - 1 g 4-5 times a day, in case of heart rhythm disturbances

➤ Asparkam - K,Mg - asparaginate, 1-2 tablets, 3 r/d, in case of heart rhythm disorders

➤ CH₃COOK - 5-10 g - daily dose, diuretic.

➤ K-orotate - 0.25-0.3 g, 2-3 r/d, for arrhythmias, liver diseases.

➤ Treatment and prevention of hypokalemia and arrhythmia.

➤ Potassium permanganate KMnO₄ is a disinfectant. Food products containing potassium compounds are recommended for the treatment of cardiovascular diseases;

➤ It is used in herbal medicine.

➤ An integral component of homeopathic medicines.

➤ The toxic dose is 6 g;

fatal - 14 g.

➤ Potassium dichromate K₂Cr₂O₇ - causes burns and difficulty breathing, coughing, etc.

➤ 18% of the Earth's crust is an orthoclase mineral containing K - K₂O * Al₂O₃ * 6SiO₂.

➤ K⁺ ions activate the synthesis of carbohydrates in plants.

➤ K affects the ability of plant cell colloids to absorb water and swell.

➤ K-Na alloy is a coolant in nuclear reactors.

➤ KNO₃ is a component of black powder.