Zinc Sulfate Heptahydrate Granules

Chinese Name:Zinc Sulfate Heptahydrate
Chinese Synonyms:Goslarite, Zinc Vitriol, Zinc Sulfate, Zinc Sulfate Heptahydrate
English Name:zinc sulfate heptahydrate; zinc vitriol; white vitriol
Molecular Formula:ZnSO₄·7H₂O
Molecular Weight:287.54
Specific Gravity:1.957
CAS No.: 7446-20-0
National Standard: HG/T 2326-2005
Physical Properties:Relative density: 1.957, melting point: 1000℃. Freely soluble in water (96.5g/100ml at 20℃; 663.6g/100ml at 100℃), slightly soluble in ethanol and glycerol.

Crops sensitive to zinc deficiency include:corn, rice, sugar beets, soybeans, kidney beans, citrus, pears, peaches, tomatoes, etc., among which corn and rice are the most sensitive. Application of zinc fertilizer has a significant effect on preventing and controlling "white stripe seedling" caused by zinc deficiency in corn and leaf roll disease in fruit trees.

Application MethodFoliar Spray:Dilute with water by 1000–1500 times, spray evenly on leaf surfaces, apply 2–3 times at an interval of 10–15 days.
Base Fertilizer or Topdressing:Apply 500–1000 grams per mu mixed evenly with fine soil or farmyard manure.
Seed Dressing:Use 2–3 grams of this product per kilogram of seeds, dissolve in a small amount of water and mix evenly with seeds.
Seed Soaking:Soak seeds in a 0.02–0.05% solution (diluted 2000–5000 times) for 8–12 hours, air-dry before sowing.