1. CERTIFICATE OF ANALYSIS
Product Name ZincSulphate monohydrate
granular 2-4mm
Packing 25kg/woven bag
Formular ZnSO4.H20 Quantity 54metric tons
CAS No. 7446-19-7 Batch No. 2019VF-197
Date of report April,6th, 2019 Specification HG/ 2934-2000
Manufacturing
Date
April,5th,2019 Expiry date April, 4th, 2021
Item Test standard Test result
Appearance White granule with particle size 2-
4mm, soluble in water, slightly
soluble in alcohol, insoluble in
acetone
Complies
Assay (as ZnS0
4 .H 2 0)
96% Min Complies
Zn 33% Min 33.18%
Cd 10ppm Max 0.0003%
Lead Pb 10ppm Max 0.0003%
Arsenic (As) 5ppm Max 0.0002%
Storage Store in a cool, dry place. Store in a tightly closed container.
2. Zinc sulphate monohydrate granular
Name of Product: Zinc sulphate --ZnSO 4 .H 2 0
Formulation Type: Percentage of raw materials
Zinc (dry basis): 33 %
Cd 10ppm max,Pb 10ppm max,As 5ppm max
Specification: GB/T25865-2010
Appearance White granular 2-4mm
Type of Packing: 20 ,25 ,1000kg bags
Usage Rate: it used as basal fertilizer (such as corn, wheat, cotton, rapeseed, sweet
potato, soybean, peanut, etc ),generally with zinc sulfate 1 ~ 2 kg per acre, mix in soil
10 ~ 15 kg per acre , vegetable use 2 ~ 4 kg per acre
Attention: Zinc sulfate can not be mixed with calcium superphosphate, heavy calcium
superphosphate, potassium dihydrogen phosphate and diammonium phosphate
phosphorus, alkaline fertilizer or farmyard manure mix(e.g., plant ash) , so as to
avoid zinc sulfate hydrolysis occurs to affect crop absorption. zinc sulfate as a foliar
spray fertilizer , the concentration can not be too high, so as not to cause crop zinc
poisoning. To improve the benefits of zinc fertilizer is best equipped with
molybdenum fertilizer or urea and other fertilizers. It much depends on your local soil
and environment situation.
3. Function:
(1) Zinc can promote crop photosynthesis.
(2) Zinc can participate in the synthesis of auxin indole acetic acid
(3) Zinc can promote the synthesis of crop protein,Effects of Zinc on the
Reproductive Organs of Crops
Storage: Store in Cool and Dry Place
Shelf Life: 2 years
