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transition_metals chemistry.pdf

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Transition Metal Chemistry SCH 322 Dr. Evans C. Ogwagwa Objectives of the course • To describe the chemistry of the transition elements • To explain the principles that underlie the chemistry of the transition elements • To highlight the catalytic and other industrial uses of the transition elements • To highlight the biological roles of the transition metals Why Study Descriptive Chemistry of Transition Metals • Transition metals are found in nature – Rocks and minerals contain transition metals – The color of many gemstones is due to the presence of transition metal ions • Rubies are red due to Cr • Sapphires are blue due to presence of Fe and Ti – Many biomolecules contain transition metals that are involved in the functions of these biomolecules • Vitamin B12 contains Co • Hemoglobin, myoglobin, and cytochrome C contain Fe Why Study Descriptive Chemistry of Transition Metals • Transition metals and their compounds have many useful applications – Fe is used to make steel and stainless steel – Ti is used to make lightweight alloys – Transition metal compounds are used as pigments • TiO2 = white • PbCrO4 = yellow • Fe4[Fe(CN)6]3 (prussian blue)= blue – Transition metal compounds are used in many industrial processes Why Study Descriptive Chemistry of Transition Metals • To understand the uses and applications of transition metals and their compounds, we need to understand their chemistry. • Our focus will be on the 4th ...
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