zinc sulfate


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zinc sulfate,

chemical compound ZnSO4, a very water soluble, transparent, colorless, crystalline compound. It is commonly used as the heptahydrate, ZnSO4·7H2O, and is commonly called white vitriol; it occurs naturally as the mineral goslarite, and can be prepared by reacting zinc with sulfuric acid. It is used to supply zinc in animal feeds, fertilizers, and agricultural sprays; in making lithopone; in coagulation baths for rayon; in electrolyte for zinc plating; as a mordant in dyeing; as a preservative for skins and leather; and in medicine as an astringent and emitic.

Zinc Sulfate

 

ZnSO4, a colorless crystalline compound, with a density of 3.74 g/cm3. Its solubility in water is 29.4 percent at O°C and 37.7 percent at 99°C. At temperatures below 38.8°C, ZnSO4·7H2O (zinc vitriol) crystallizes from solution, and between 38.8°C and 70°C, ZnSO4·6H2O. The monohydrate ZnSO4H2O forms above 70°C, which dehydrates at 238°C. Between 600°C and 900°C, zinc sulfate decomposes into ZnO and SO2. Weak solutions of zinc sulfate become turbid upon hydrolysis as a result of the precipitation of 3Zn(OH)2·ZnSO4·4H2O.

Zinc vitriol is obtained by evaporation and crystallization from solutions, usually as a by-product in the production of zinc. It is used in the production of viscoses, mineral pigments, and glazes. In metallurgy it is used as a flotation reagent. It is also used in medicine.

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zinc sulfate

[′ziŋk ′səl‚fāt]
(inorganic chemistry)
ZnSO4·7H2O Efflorescent, water-soluble, colorless crystals with an astringent taste; used to preserve skins and wood and as a paper bleach, analytical reagent, feed additive, and fungicide. Also known as white copperas; white vitriol; zinc vitriol.
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For treatment period duration, efficiency of treatment with both of zinc sulfate and ORS in comparison with only ORS, it was observed that mean healing period in experimental group was 1.9 day that was 3.21 day for control group.
After measuring taste acuity before chemoradio-therapy (at baseline), one group was given zinc sulfate capsules 50 mg and the other group received placebo.
Conclusion: Oral zinc sulfate 10mg/kg is not better than intramuscular MA in treatment of cutaneous leishmaniasis but can be considered as a treatment option if MA cannot be used.
It can be concluded also that the enhancement effect of spraying corn plants with zinc sulfate and zinc chelate on plant height.
The addition of iron in the zinc sulfate electrolyte did not change the zinc mass deposited on cathode, and did not change the current efficiency, as shown in Table 3.
The zinc sources studied herein (zinc sulfate, zinc oxide, zinc acetate, zinc-methionine, and zinc-lysine) were determined to be containing 32.64, 75.73, 28.83, 9.31, and 9.52% zinc as fed basis, respectively.
"Oral zinc sulfate in the treatment of rosacea: a double-blind, placebo-controlled study." Int J Dermatol 2006; 45:857-61.
The FDA lists five zinc compounds as GRAS for foods: zinc chloride, zinc gluconate, zinc oxide, zinc stearate and zinc sulfate.
Reported treatments for leg ulcers in sickle cell disease patients include wet dressings, hydroxyurea, transfusions, recombinant erythropoietin, zinc sulfate supplements, and surgical grafts and flaps.
Protocols have used zinc sulfate followed by acetonitrile (8), methanol (9), or acetone (10).
In a review of A Double-Blind, Placebo-Controlled Study of Zinc Sulfate as a Treatment for AD/HD (Rabiner 2003), Dr.
Vanadyl sulfate (VOS[O.sub.4]), zinc sulfate, copper, zinc superoxide dismutase (Cu,ZnSOD), PAPANONOate, calphostin C, and A23187 (a calcium ionophore) were obtained from Sigma Chemical Co.