High Quality Fertilizer Grade Zinc Sulphate Heptahydrate ZnSO4.7H2O 97.3% Min Zn 22.0% Min

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Zinc Sulphate Heptahydrate

Zinc (Zn) is an essential nutrient required in some fertilizer programs for crop production in Minnesota. While some soils are capable of supplying adequate amounts for crop production, addition of zinc fertilizers is needed for others. In Minnesota, Zn may be needed in fertilizer programs for production of corn, sweet corn, and edible beans. Several research projects have focused on the use of this nutrient, and much of the following information is based on the results of that research.

The Role of Zinc in the Plant

The specific role of Zn in growth and development of plants is not known. This nutrient is an important component of various enzymes that are responsible for driving many metabolic reactions in all crops. Growth and development would stop if specific enzymes were not present in plant tissue.

Zinc, however, is needed in very small amounts. Plant uptake of this nutrient is calculated in terms of ounces per acre instead of pounds per acre. Therefore, Zn is classified as a micronutrient.

Deficiency Symptoms

Plants fail to develop normally when they are deficient in Zn and certain characteristic deficiency symptoms will appear. With corn, these symptoms usually appear in the first two or three weeks of the growing season. If the deficiency of Zn is severe, these symptoms may last throughout the entire season.

 

Specification

Product	Formula	Content	Fineness	Property	Heavy metals  and Injurants(%)
Zinc Sulphate Heptahydrate	ZnSO4.7H2O	ZnSO4.7H2O≥97.3%, Zn≥22.0%	pass 800μm Sieve ≥95%	White Crystalline powder	As≤0.0005 Pb≤0.001 Cd≤0.002
Zinc Sulphate Monohydrate	ZnSO4.H2O	ZnSO4.H2O≥94.7%, Zn≥34.5%	pass 250μm Sieve ≥95%	White Powder	As≤0.0005 Pb≤0.002 Cd≤0.003
Granular Zinc Sulphate Monohydrate	ZnSO4.H2O	ZnSO4.H2O≥94%, Zn≥33%	In accordance with  customers' need	White Granule	As≤0.0005 Pb≤0.002 Cd≤0.003
zinc carbonate	ZnCO3	Zn≥56.5%	In accordance with  customers' need	White Powder	As≤0.001 Pb≤0.005 Cd≤0.001

Factory

High Quality Fertilizer Grade Zinc Sulphate Heptahydrate ZnSO4.7H2O 97.3% Min Zn 22.0% Min