Magnesium-potassium chloride is an inorganic compound, a double salt of magnesium , potassium and hydrochloric acid with the formula MgKCl 3 , colorless crystals, it dissolves in water, forms crystalline hydrates .
| Magnesium potassium chloride | |
|---|---|
| General | |
| Systematic name | Magnesium potassium chloride |
| Traditional names | Potassium Chloride |
| Chem. formula | MgKCl 3 |
| Physical properties | |
| condition | colorless crystals |
| Molar mass | 169.76 g / mol |
| Density | hydrate - 1.61 g / cm³ |
| Chemical properties | |
| Solubility in water | hydrate - 64.5 15 g / 100 ml |
| Optical properties | |
| Refractive index | hydrate - 1,466; 1.475; 1,494 |
| Classification | |
| Reg. CAS number | |
| PubChem | |
| Smiles | |
| Inchi | |
Content
- 1 Receiving
- 2 Physical properties
- 3 Application
- 4 notes
- 5 Literature
Getting
- The carnallite mineral, MgKCl 3 • 6H 2 O, with impurities is found in nature [1] .
Physical Properties
Magnesium potassium chloride forms colorless crystals.
It is soluble in water.
Forms a crystalline hydrate of the composition MgKCl 3 • 6H 2 O, which melts in its own crystallization water at 265 ° C — rhombic syngony crystals, space group P nna or P cna , cell parameters a = 1.608 nm, b = 2.225 nm, c = 0.953 nm, Z = 12.
Application
- It is used in the chemical industry for the production of potassium (an important raw material) and magnesium, in agriculture as a fertilizer - potassium salt.
Notes
Literature
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.