Zinc chloride is one of the important zinc componds. It is stable in the vapour phase upto 900oC. It is very hygroscopic, extremely water soluble, and soluble in organic liquids such as alcohols, esters, ketones,ethers, amides and mitrictes. Hydrates with 1, 1.5, 2.5, 3, and 4 molecules of water have been identified and great care must be expressed to avoid hydration of the anhydrous form.
Aqueous solution of zinc chloride are acidic (pH=1.O for 6 m ),and when partially neutralized form slighly soluble basic chlorides eg. Zncl2 and 4 Zn( ch)2 and Zn(ch)cl many other basic chlorides have been reported.
Zinc Chloride (Zn Cl2) is available as white, crystalline powder, odourless, moulded in pencils or porcelains like mass.
Zinc Chloride is obtained by heating zinc with dry chlorine gas, by the action of hydrochloric acid on Zinc Oxide, or by heating a mixture of Zinc Sulphate and Sodium Chloride.
Zinc chloride is an industrially important compound of Zinc. In aqueous solution, it may be used alone or in combination with phenol or sodium chromate as a wood preservative for railway sleepers poles for communication lines, etc. and for fire proofing timber.
Zinc Chloride (ZnCl2 2 H2O) is usually in the form of white granular deliquent crystals or crystalline powder. It is not easily obtained in anhydrous form but usually contains approximately 5% water. It is soluble in water, alcohol, glycerine, and ether. Its specific gravity at 25oC is 2.91; m.p 283oC and boiling point 732oC, It is sold in four grades.
99% minimum (Refined grade)
94% minimum (Battery grade)
92% minimum (Technical grade)
78-84% minimum (Flux grade)
Global Zinc Chemicals Market stood at nearly USD7.90 Billion in 2017 and is anticipated to grow at a steady rate, witnessing CAGR of 4.89% during the forecast period, reaching USD12.92 Billion through 2027. The growth in the Global Zinc Chemicals Market can be attributed to the versatile applications of zinc derivatives in several industries. Moreover, the ongoing M&A activities among industry behemoths such as Zinc Oxide L.L.C. and Zochem Inc. would further cater to the growth in Global Zinc Chemicals Market at a modest pace, during the forecast period.
Anhydrous zinc chloride can be made from the reaction of the metal with chloride or hydrogen chloride. It is usually made commercially by the reaction of aqueous hydrochloric acid with scrap zinc materials or roasted ore, ie. crude zinc oxide.
The solution of zinc chloride is purified in various ways depending upon the impurities present.
For example, iron and manganese precipitate after partial neutralization with zinc oxide or other alkali and oxidation with chlorine or sodium hypochlorite, heavy metals are removed with zinc powder, the solution is concentrated by boiling, and hydrochloride acid is added to prevent the formation of basic chlorides, zinc chloride is usually sold as a 47.4 Wt% (1.53) solution, but is also produced in solid form by further evaporation until, upon looking, an anhydrous salt crystallizes the solid is sometimes sold in fused form.
Zinc chloride can be prepared by several methods, although zinc chloride can be prepared by passing chloride gas over red hot zinc or zinc oxide, or by the action of hydrochloric acid on zinc or spelter (98-99% Zinc) or Zinc oxide it is more economical to produce it from secondary zinc sources such as Zinc scrap from sheet cutting, zinc anodes, old zinc roofings and zinc die, casting or from zinc rich residues in manufacturing processes such as galvanizing. In India the most common raw materials used in the manufacture of zinc dross (92-94% zinc) Zinc ash (60-65% Zinc) and zinc skimmings (40-45% Zinc) which are obtained from galvanizing industry.
To produce 20 Ton/day zinc chloride, Land area required 4000 sq. mtr. Approx., Machinery Cost Rs. 1.40 Cr., Raw Materials Zinc Ash and others Cost 2 Cr./month, Rate of Return: 29%. Do call on +91 9811437895 to obtain a copy of the project report or email at email@example.com