MODEL SOLUTION ALUMINIUM (III) IONS
MODEL SOLUTION AMMONIA (I) IONS
MODEL SOLUTION BARIUM (II) IONS
MODEL SOLUTION BISMUTH (III) IONS
MODEL SOLUTION CHROMIUM (VI) IONS
MODEL SOLUTION ZINC (II) IONS 
MODEL SOLUTION TIN (II) IONS
MODEL SOLUTION CADMIUM (II) IONS
MODEL SOLUTION MAGNESIUM (II) IONS
MODEL SOLUTION MANGANESE (II) IONS
MODEL SOLUTION COPPER (II) IONS
MODEL SOLUTION NICKEL (II) IONS
MODEL SOLUTION LEAD (II) IONS
MODEL SOLUTION POTASSIUM (I) IONS
MODEL SOLUTION SODIUM (I) IONS
MODEL SOLUTION SILVER (I) IONS
MODEL SOLUTION STRONTIUM (II) IONS
MODEL SOLUTION CALCIUM (II) IONS
MODEL SOLUTION IRON (III) IONS