Summary

Gravimetric method is used whereby dimethylglyoxime (1% in alcohol) is added to precipitate the analyte which is later separated from the solution and dried. The concentration of the sample solution has been calculated as 0.109 mg/mL. Introduction; In this lab, you will be precipitating nickel (Ni2+) from an unknown Nickel ore.

A detailed investigation has been made of the gravimetric determination of nickel with dimethylglyoxime in the presence of copper. Copper interference is eliminated by precipitation in a solution containing tartrate and thiosulphate at a p_H of 5.5–6.5. The solubility of the nickel dimethylglyoxime complex has been determined as a function of temperature, p_H and alcohol concentration.

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Gravimetric Determination Of Nickel

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Gravimetric Analysis Of Nickel Using Dimethylglyoxime

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