3 Hours/Week, 3 Credits

1. Chemistry of water and sea water. 2. Composition of Sea Water: Major and minor elements, Trace elements and their biological roles, Dissolved gasses in sea water, Constancy of composition, Factors influencing composition of sea water, Preparation of artificial sea water. 3. Metals: Heavy metals, Organic and inorganic metals, Evaporites, DOM, POM, Biolimiting elements 4. Steady and Non-steady State of Ocean Composition: residence time, thermohaline circulation, 2 box model, mass balance, cyclic salt, hydrothermal system, speciation of major ions. 5. Chemistry of Air-sea Interface: inputs to and outputs from the ocean, rivers and estuaries, weathering. 6. Nutrients in the Sea: Nitrogen, Phosphorous and Silicon cycles. 7. The carbon dioxide and carbonates system. 8. Solubility of salts in seawater. 9. The oxidation-reduction potential of seawater. (pH, eH, etc.) 10. Inorganic agencies effecting the composition of sea water. 11. Biological and chemical aspects of dissolved organic material in sea water. 12. Isotope: Radioactive and stable isotopes, radio chemistry, radio nuclides, 14C dating, 234Th methods. 13. Chromatography: Basic idea, Theory and principle of TLC, GLC, HPLC column. 14. Desalination: Definition, Processes. 15. Geochemistry and marine environment. 16. Chemical features of Indian Ocean and Bay of Bengal. 17. Green house gases and its effects in the Bay of Bengal. Recommended Books 1. Chemical Oceanography by Horne 2. Marine Chemistry by Martin 3. Introduction to Marine Biogeochemistry by Susan Libes