... is commonly used in fertilizers, providing both potassium and sulfur. 2.Property The anhydrous crystals form a double six-sided pyramid, but ... salt is soluble in water, but insoluble in solutions of potassium hydroxide (sp. gr. 1.35), or in absolute ethanol. It ... other cationic (especially trace elements). Can meet the need of potassium of crops, lower salt-chemical index, applicable to all crops ...