Granular Zinc Sulphate Heptahydrate 21% 1.Agriculture Grade 2.Granular Trace Element 3.Large Stock, Fast Delivery Basic ... decomposition. 1 g soluble in 0.6 ml water, 2.5 ml glycerin, not soluble in alcohol. To become acidic aqueous ... elements of the commonly used zinc fertilizer fertilizer, can do basal, hairy, fat, etc.Also used for printing and dying mordant dyeing ...