Use of Zinc Chloride in Soldering

Use of Zinc Chloride in Soldering. Glean two copper wire ends with emery paper and place them on a sheet of asbestos so that they are in contact with each other. Put 1-2 g of metallic tin on the asbestos sheet. Heat an electrical soldering iron until it acquires a dark red glow, touch the tin with it, and transfer the drop of molten tin to the place of contact of the copper wires. What do you observe Did the tin solder the ends of the wires  

Lower the same copper wire for one minute into the mother liquor from which the zinc chloride crystallohydrate crystallized and repeat the above experiment. Did the wires become soldered in this case What underlies the use of a concentrated zinc chloride solution when metals are soldered What else can be used to purify a metal  

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Preparation of Zinc Amalgam (260). 2. Preparation of a Low-Melting Alloy (260). 3. Preparation of Zinc Chloride (260). 4. Preparation of Zinc Oxychloride (261). 5. Preparation of Zinc Choride Crystallohydrate (261). 6. Use of Zinc Chloride in Soldering (262). 

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