Zinc Sulfate

Chemical Name: Zinc Sulfate

Molecular Formula: ZnSO4·H2O ; ZnSO4·7H2O

Molecular Weight: Monohydrate: 179.44 ; Heptahydrate: 287.50

CASMonohydrate:7446-19-7 ; Heptahydrate:7446-20-0

Character: It is colorless transparent prism or spicule or granular crystalline powder, odorless. Heptahydrate: The relative density is 1.957. Melting point is 100℃. It’s easily soluble in water and aqueous solution is acidic to litmus. It’s slightly soluble in ethanol and glycerin. The monohydrate will lose water at temperatures above 238℃; The Heptahydrate will be effloresced slowly in the dry air at room temperature.

Product Detail

Usage: It is used as nutritional supplement (zinc fortifier) and processing aid. It’s used in milk product, infant food, liquid and milk drinks, grain and its’ products, table salt, soft drinks, maternal formula and coco powder and other flavor nutritional solid drinks.
Packing: In 25kg composite plastic woven/ paper bag with PE liner.
Storage and Transport: It should be stored in a dry and ventilated warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
Quality Standard: (GB25579-2010, FCC-VII)

Specification GB25579-2010 FCC VII
Content,w/% ZnSO4·H2O 99.0-100.5 98.0-100.5
ZnSO4·7H2O 99.0-108.7 99.0-108.7
Arsenic(As),w/%              ≤ 0.0003 ————
Alkalis and Alkaline Earths,w/% ≤ 0.50 0.50
Acidity, Pass Test Pass Test
Selenium(Se),w/%            ≤ 0.003 0.003
Mercury(Hg),w/%             ≤ 0.0001 0.0005
Lead(Pb),w/%                ≤ 0.0004 0.0004
Cadmium(Cd),w/%            ≤ 0.0002 0.0002

 

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