5th Summary-Introduction to Solid State Synthesis of Mixed Metal Oxide, Dr. Dr. Lukasz Koscielski – Dept. of Chemistry UPR -CayeyDuring our last workshop, we explored the field of inorganic chemistry by synthetizing ternary compounds. They are compounds that consist in two non-metal elements and an oxygen. But these complex compounds are rarely found in natural conditions, therefore, in other to prove their existence in the universe we built possible stoichiometric reasons in which they could arrange in certain compounds. What also would affect in the compound that was to be synthesized was the oxidation charges for each atom or element other than the oxygen which is a negative two. We were able to try this procedure and certify if certain compounds did exist so that we would be able to characterize and find new properties for modern technologies. In my case, I mixed tin that has two oxidation states (tin, 2+ and 4+) and also bismuth that only has one oxidation state (3+). Hence there were only two possible compounds that could be formed in the synthesis of these metals using the following stoichiometry base. The mixture of the metals was done in in a silica tube very resistant to high temperatures and we carbon coated it with acetone by heating it and adding the acetone to adhere to the tube walls so the metals didn’t react with the silica. After the carbon coating we loaded the stoichiometric amounts of the metals that were calculated previously. Once the tubes are loaded with the reactants we proceed to place them on the furnace at temperatures above 1,273K for it to commence. Essentially during this workshop we pursued the identification of crystals within a sample of the products from the reactions. Most importantly if there would have been successful identification of crystal these possess very useful electronic properties leading to the discovery of highly conductible metals.

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