The following are the specifications of Zinc Sulfate Heptahydrate for your reference:

 

Specification: Zinc Sulfate Heptahydrate (Excellence in goods)

ZnSO4·7H2o ≥---------------------------------------------98

Zn% ≥-------------------------------------------------------22.51

Cl% ≤-------------------------------------------------------0.020

Pb% ≤-------------------------------------------------------0.001

Fe% ≤-------------------------------------------------------0.003

Mn% ≤------------------------------------------------------0.005

Cd% ≤-------------------------------------------------------0.001

Insolubl materi%≤-----------------------------------------0.02

 

Specification: Zinc Sulfate Heptahydrate (First-class goods)

ZnSO4·7H2o ≥---------------------------------------------96

Zn% ≥-------------------------------------------------------22.06

Cl% ≤-------------------------------------------------------0.6

Pb% ≤-------------------------------------------------------0.010

Fe% ≤-------------------------------------------------------0.020

Mn% ≤------------------------------------------------------0.10

Cd% ≤-------------------------------------------------------0.010

Insolubl materi%≤-----------------------------------------0.050

 

Specification: Zinc Sulfate Heptahydrate (Conforming)

ZnSO4·7H2o ≥---------------------------------------------92

Zn% ≥-------------------------------------------------------20.92

Pb% ≤-------------------------------------------------------0.010

Fe% ≤-------------------------------------------------------0.060

Insolubl materi%≤-----------------------------------------0.1

 

Should our Zinc Sulfate Heptahydrate be of interest to you, please let us know, I will be very pleased to give you the reasonable quotation upon received of your detailed requirements.