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**Chemical name:** Potassium chloride
**Formula:** KCl
**Molar mass:** 74,55 g/mol
**Mohs scale hardness:** 2
**Crystal system:** cubic system
**Cell:** Two face-centred cubic cell occupied by ions K⁺ and Cl⁻
**Crystal habit:** Cube, rarely octahedral
**Information:** Potassium chloride is a clean white crystalline solid with a salty taste. It is non-flammable, non-toxic, soluble in water and has a bitter taste.
**Use:** Sylvine is an important source of potassium ions and it is used as a fertilizer in agriculture . The melting of potassium chloride produces elemental potassium.
