What is Zinc Hydroxide? Zinc hydroxide, chemical formula Zn(OH)2, amorphous white powder. Relative density 3.05, in 40 ~ 50℃ after drying in line with the molecular formula composition, heat to 125 ℃ decomposition into zinc oxide and water. Difficult to dissolve in water, dissolved in strong acid to generate zinc salt, dissolved in strong base to generate zinc acid salt, dissolved in excess ammonia to generate zinc ammonia ion. Add appropriate amount of sodium hydroxide solution to zinc nitrate solution, precipitate can be precipitated. Similar to aluminum hydroxide, zinc hydroxide is an amphoteric hydroxide, the following amphoteric equilibrium exists in saturated solution:Zn2- 2OH=H =Zn(OH)2==(OH-)==2H (ZNO2)2-. Since zinc oxide is insoluble in water, zinc hydroxide cannot be produced directly by the action of zinc oxide and water, but can be produced by adding an appropriate amount of alkali to a solution of soluble zinc salts. Specification Item Standard Assay ≥98.00% Appearance White powder Grain size 99% through 100 mesh Melting point 125℃ Loss on drying ≤5.0% Application Use of zinc hydroxide: used to produce zinc oxide and zinc salt, used in the production of zinc compounds, such as zinc oxide, zinc sulfate, zinc nitrate, etc. Used as an analytical reagent and also in rubber manufacture. Package 25kg/bag or requirement of clients.
