What is potassium chloride?

Potassium chloride

The potassium and chlorine are two very important elements necessary for proper survival of humans. There are different means by which these two minerals can be obtained but mainly they are acquired from potassium chloride , which is the main source of both. Besides being an important addictive enhancer flavor it is necessary to try and improve certain situations of such medical that can affect the health of humans.

Potassium Chloride |  What is it, characteristics, properties, formula, obtainingWhat is potassium chloride?

The potassium chloride is a type of halide metal that is composed of potassium and chloride which is used mainly in the field of medicine and applications scientific and processings related to food .

  • Potassium chloride characteristics
  • History
  • Potassium Chloride Formula
  • Obtaining
  • Properties (edit)
  • What is it for
  • Potassium Chloride Presentation
  • Dose
  • Precautions

Potassium chloride characteristics

Some of the main characteristics of potassium chloride are mentioned below:

  • When in its pure state , potassium chloride has no odor.
  • It can be presented in the form of a crystal, colorless or white glass .
  • It has a crystal structure of cubic shape which is centered on the faces then fractured in three different directions.
  • In nature it can be found as the mineral sylvite .
  • It is considered as a type of inorganic compound .
  • It has a density of 1987 kg / m³; 1.987 g / cm³.
  • It has a melting point of 776 ° Celsius and a boiling point of 1497 ° Celsius.
  • It has a molar mass of 74.55 g / mol.
  • It is soluble in water and to a lesser degree in ethanol .


In reality, all potassium salts in the form of saltpeter , alum and potash have been known for many centuries. At the beginning, they were used only for the creation of gunpowder , soaps and dyes . In ancient times, the walls of the latrines that were made of clay and sulfuric acid used to be scraped and then the rest are sheltered in the form of wood ash.

These results left over from this process led to potassium being classified as a type of soil by Antoine Lavoisier. In 1807 , Humphry Davy managed to expose wet potash to an electric current and then he was able to observe the way in which a series of metallic globules were formed that belonged to a new metal, in this case potassium, in addition, he also observed that when dropped into water they had the ability to move across the surface and burn into a lavender flame .

Potassium Chloride Formula

The molecular formula of potassium chloride is: KCl .


Potassium chloride can be obtained in nature as sylvite or silvitina but can also be extracted from the salt water by different means including crystallization , flotation or electrostatic separation . It can also be found in the form of potassium in different types of vegetables and fruits.

Properties (edit)

Among its main properties are the following:

  • It has the great ability to react as a source of chloride ion .
  • When added to a solution containing metallic salt, it has the ability to precipitate insoluble chlorides .
  • It can be reduced to metal when a reaction is applied using metallic sodium.
  • It is an extremely stable product when kept under normal storage and handling conditions.
  • It is incompatible with bromide triofloride.
  • When it undergoes thermal decomposition , it has the ability to produce some hazardous materials such as halogens and metal oxide .

What is it for?

It is important to mention that potassium is an essential part to achieve a proper functioning of the whole organism , potassium chloride is specifically used in order to be able to correct or prevent very low levels of potassium in the blood from occurring It can be used on some occasions as a substitute for sodium chloride, taking into account that excessive intake of table salt can cause a large number of health problems.

It is also an important additive for foods since it has the ability to enhance the flavor of thickening meals and also to act as a stabilizer so it is commonly found in dairy products or products based on whey protein powder. Another of its important uses is to act as a fertilizer since the contribution they make of potassium is much greater and at the same time has a lower cost.

Potassium chloride can work as a mineral supplement that can be helpful in reducing tiredness , muscle cramps, or heat fatigue that can occur when you sweat more than usual. This product is often used for outdoor recreational activities in hot conditions, or indoors anywhere where high temperatures can cause overheating.

Potassium Chloride Presentation

Potassium chloride can be found in different types of presentations. It may be in the form of injectable composition for the 10% in 5 ml ampoules containing 0.5 grams of potassium chloride a total, can be injectable to the 14.9% or the 20%.


When potassium chloride is applied in an injectable form, it must be administered intravenously in order to restore electrolytes , in that regard, the dose and administration of the drug must be determined based on the individual needs of each of the patients without exceeding 40 mEq of potassium per day.


Although potassium chloride is considered a safe substance for humans, you should avoid being inhaled or consumed as this can cause different types of problems in the respiratory and digestive system . If ingested, it can cause a series of problems related to irritation of the entire gastrointestinal tract, then causing a series of vomiting , nausea and diarrhea . If it comes into contact with the skin, it can cause significant irritation, as if the product comes into contact with the eyes.

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