Zinc Chloride: Specification, Formula, and Uses
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Specification
Molecular Formula : ZnCl2
Appearance : White crystalline solid or powder
Odor : Odorless
Density : 2.91 g/cm³
Melting Point : 275°C
Boiling Point : 756°C
Solubility : Soluble in water and ethanol
pH : 4-5 in 5% solution
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Formula:
Zinc Chloride is a binary ionic compound formed by the reaction between zinc and chlorine. The chemical formula of Zinc Chloride is ZnCl2. It is a white crystalline solid or powder, odorless, and highly soluble in water and ethanol.
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Uses:
Zinc Chloride has various applications in different industries due to its unique properties. Some of the major uses of Zinc Chloride are:
Galvanizing:
Zinc Chloride is used in the galvanizing process to protect iron and steel from corrosion. It is used as a fluxing agent to remove oxides and impurities from the metal surface and improve the adhesion of zinc coating.
Batteries:
ZincChlorideisusedasanelectrolyteindry-cellbatteriesduetoitshigh conductivityandstability. It is also used in alkaline batteries as a cathode additive to increase the battery life.
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Chemical Synthesis:
Zinc Chloride is widely used in chemical synthesis reactions as a catalyst or reagent. It is used in the production of dyes, pigments, and pharmaceuticals. It is also used as a dehydrating agent to remove water from organic compounds.
Wood Preservation:
Zinc Chloride is used as a wood preservative to protect it from insects and fungi. It is highly effective and long-lasting compared to other preservatives.
Textile Industry:
Zinc Chloride is used in the textile industry as a mordant to fix dyes on the fabric. It helps in improving the color fastness and durability of the fabric.
Other Uses:
Zinc Chloride is also used in the production of antiseptics, disinfectants, and deodorants. It is used in the oil and gas industry as a completion fluid and in the rubber industry as an accelerator.
In conclusion, Zinc Chloride is a versatile compound with a wide range of applications in various industries. Its unique properties and stability make it a popular choice in chemical synthesis, batteries, galvanizing, wood preservation, and the textile industry. Zinc Chloride is readily available in the market and is a cost-effective solution for various applications.