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Definition of KCl
KCl, also known as potassium chloride, is a chemical compound with the formula KCl. In a potassium chloride atom, there is one potassium atom (K) and one chlorine atom (Cl). Potassium chloride has a molar mass of 74.55 g/mol. The molecular structure of KCl is ionized into K+ and Cl- ions, when K+ and Cl- ions combine, they form the compound KCl. -
Properties of KCl
2.1 Physical properties: KCl is a solid at room temperature, white or transparent in color. It is odorless and has a salty taste. KCl has a neutral pH.
2.2 Chemical properties: Potassium chloride does not react with O2, it easily decomposes by heat and reacts with strong oxidizing agents. -
Common chemical equations of KCl:
Metal reaction: KCl can react with metals like Na to form NaCl and K.
Acid reaction: KCl reacts with HNO3 acid to form KNO3 and HCl.
Non-metal reaction: KCl does not react with non-metals.
Reaction with salts: KCl can react with other salts to form different compounds. -
Preparation of KCl:
4.1 Laboratory preparation: KCl is usually prepared by combining potassium and chlorine under high temperature conditions.
4.2 Industrial preparation: In industry, KCl is typically produced from sylvinite ore, a type of mineral that contains potassium chloride and sodium chloride.