Determination Of Chemicals In A Chromite Sample

Experiment 29 Hydromet separatelyurgy to Analyze a Chromite Sample: A self-governing Experiment Bret Eady, Seth Berry October 17, 2010 INTRODUCTION: The entirely ore containing chromium is chromite. Chromite is a conspiracy of bid, magnesium, chromium, and oxygen. The chromium from the chromite is used for more or less(prenominal) constructional purposes much(prenominal) as: the achievement of stainless steel, enhancing the structural integrity of umpteen metallic elements, and reducing the station at which they corrode. Sometimes the composition of chromite whitethorn vary and the branding iron in chromite may be replaced by magnesium. Also, the chromium in chromite may sometimes be replaced by aluminum and ferrous ions. Hydrometallurgy is a way to get around the different elements making up ores and isolate the metals from from each superstar other. In order for this to occur, the ore must be melted flock into a solution. After the metals of the ore have been dissolved, they may be disjointed from each other by many different processes, some of the most popular are leaching and precipitating the metal from the solution via electrolysis or chemical means. In this experiment the police squad of students must determine exactly what is in chromite sampling, and also affirm the existence of all such metals that should be in the sample of chromite.

The leaching technique provide be used and returns form via the addition of NaOH to the leach solution. The displacement of iron via zinc will also be utilized. As each metal precipitate forms in the solution, it w ill have to be separated from the rest solu! tion and the process repeated until all precipitates have been created and isolated. Next, each individual precipitate will be dissolved into an sedimentary solution and ran through a spectrometer. The chartical record that the spectrometer gives of the un cognise precipitate will be compared to the known graph of these metals. The wavelength maxes will be determined for each of the unknowns via religious analytic thinking in order to determine...If you want to get a to the full essay, order it on our website: BestEssayCheap.com

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