High quality Zinc Sulphate powder 1.Fertilizer Grade 2.white Granular 3. ... °C above decomposition. 1 g soluble in 0.6 ml water, 2.5 ml glycerin, not soluble in alcohol. To ... kind of supplement crops trace elements of the commonly used zinc fertilizer fertilizer, can do basal, hairy, fat, etc.Also ... customer requirements)Delivery Date: within 15 days after confirmation High quality Zinc Sulphate powder