The Magnesium potassium sulfate with CAS registry number of 13826-56-7 is also known as Sulfuric acid, magnesium potassium salt (3:2:2). The IUPAC name is Dimagnesium dipotassium trisulfate. In addition, the formula is H₂O₄S.2/3K.2/3Mg and the molecular weight is 415.03. This chemical is a white crystal and soluble in water.

Physical properties about Magnesium potassium sulfate are: (1)ACD/LogP: -1.03; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -5.53; (4)ACD/LogD (pH 7.4): -5.53; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)#H bond acceptors: 4; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 0; (10)Polar Surface Area: 82.98Ų; (11)Enthalpy of Vaporization: 62.94 kJ/mol; (12)Boiling Point: 330 °C at 760 mmHg; (13)Vapour Pressure: 3.35E-05 mmHg at 25 °C.

Preparation of Magnesium potassium sulfate: it is prepared by reaction of K₂SO₄ with MgSO₄. Mixing K₂SO₄ with MgSO₄ by ratio of 1 : 2, then placeing the mixture in the crucible for melting. Potassium sulfate crystals can be obtained by cooling and crystallization.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Mg+2].[Mg+2].[K+].[K+]
2. InChI: InChI=1S/2K.2Mg.3H2O4S/c;;;;3*1-5(2,3)4/h;;;;3*(H2,1,2,3,4)/q2*+1;2*+2;;;/p-6
3. InChIKey: WZISDKTXHMETKG-UHFFFAOYSA-H