![]() ![]() Potassium chloride is present in some foods in small amounts. The amine-coated potassium chloride is skimmed off the top of the reaction mixture, purified, and prepared in some crystalline or powder form. An amine is an organic compound that contains the nitrogen, usually as the -NH 2group. A flotation agent is a material that coats the desired compound, such as potassium chloride, and allows it to float to the surface of the reaction chamber, like the soap suds that float on top of a washing machine. The solid mixture is then cleaned and purified before being treated with a flotation agent, usually some type of amine. The majority of potassium chloride in the United States is now extracted by a lengthy process that also begins with the crushing of natural ores, such as sylvite and carnalite. Since potassium chloride is much more soluble in hot water than in cold water, it crystallizes out after other salts have been removed. As it cools, each of the dissolved salts crystallizes out at a specific temperature, is removed from the solution, and is purified. The solution is then allowed to cool very slowly. ![]() The minerals that make up the deposit are crushed and dissolved in hot water. In the United States, sea salt deposits are found in New Mexico, Texas, California, and Michigan.Īny one of the salts present in a sea salt deposit-including potassium chloride-can be extracted by a common procedure. Over millions of years, huge deposits of these minerals have been buried under the land. When large bodies of sea water dry up, they leave behind complex mixtures of minerals consisting of these salts. The most important of those salts are sodium chloride (about 2.3 percent), magnesium chloride (about 0.5 percent), sodium sulfate (about 0.4 percent), calcium chloride (about 0.1 percent) and potassium chloride (about 0.07 percent). Sea water is a solution of a number of salts dissolved in water. Very soluble in water slightly soluble in ethyl alcohol, and insoluble in ether, acetone, and other organic solvents HOW IT IS MADEĪll of the major sources of potassium chloride have their origin in sea water. Not applicable sublimes at about 1500☌ (2700☏) SOLUBILITY: Potassium muriate muriate of potash FORMULA: By far the most important application of potassium chloride is in the manufacture of fertilizers. Potassium chloride is the most abundant compound of the element potassium and has the greatest number of applications of any salt of potassium. It also occurs in sea water at a concentration of about 0.076 percent (grams per milliliter of solution). It occurs naturally in the minerals sylvite, carnallite, kainite, and sylvinite. It is odorless, but has a strong saline (salty) taste. Potassium chloride (poe-TAS-ee-yum KLOR-ide) occurs as a white or colorless crystalline solid or powder. ![]()
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