Chemistry Lab 1211Thursday/ 12:00pm| 2009| | Brian Longoria/Ally Orr/ Paige Reece/Michael Smith | | | Experiment 29 -------Hydro admixturelurgy to Analyze a Chromite S adenosine monophosphatele (A Self-Directed Experiment) * PURPOSE:To roll the presence of the comp peerlessnts of Chromite- Iron, Magnesium, and chromium- in an sedimentary beginning in wander in to identify and extraterrestrial being sample of ore. * MATERIALS: * Iron (III) nitrate, unshakable & Chromium (III) nitrate, solid * 1.00 M Hydrochloric acid, rootage & 4 M Sodium hydrated oxide solution * Zinc admixture * MeasureNetÂ® spectrophotometer and cuvettes * Normal research lab glasswork and equipment * INTODUCTION Chromite is the only mineral ore of chromium. Chromium has various uses including the toil of guiltless steel, enhancement of nonferrous alloys , hardenability and the adjustments of these alloys to be more(prenominal) resistant to eating away and oxidation. Chromium has other more familiar everyday uses including: the metal plating in metals, pigments, leather subprograming, catalysts, bulge treatments, and refaractories. The most commonplace bound of chromite is the obscure iron atomic number 12 chromium oxide.
However, in roughly samples, magnesium lot skip for iron, and aluminum and ferric ions can substitute for chromium (Experiment 29379). A procedure that utilizes aqueous solution chemistry for the convalescence of metals from salts, minerals, or ores by extractive metallurgy is cognise hydrometallurgy. The source step of the process is extracting the metal. Extraction is the process of removing metal from ore by dissolving the metal in a satisfactory solvent, whence recovering the metal from the solution, and discarding waste materials; operations to bring to pass extraction includes leaching (dissolving by water or acid), which is common with additive agents; separating the waste and make pure the leach solution; and set up the metal or one of its pure compounds from the leach solution by chemical or...If you demand to get a broad essay, read it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper