Solvents for Chemistry Enthusiasts
Explore the power of solvents with Dr. A. Stella Shalini, Assistant Professor of Chemistry at St. Joseph's College, Trichy-2. Learn about the properties of water as a universal solvent, its ability to dissolve substances like salt, and non-aqueous solvents such as liquid ammonia. Discover the classification of solvents based on protic, aprotic, acid, basic, amphiprotic, ionising, and non-ionising properties. Delve into the world of solvents and their role in chemistry.
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Solvents by Dr. A. Stella Shalini Assistant Professor, Department of Chemistry, St. Joseph s College, Trichy-2
Substance - power of dissolving other substances
Water as Universal solvent Water is an excellent solvent. High dielectric constant & high ionizing capacities Reduces forces of electrostatic attraction binding the charged ions in solid electrolytes.
Water as Universal solvent (contd.) It is neutral, odourless, non-toxic and non- poisonous. So handled safely. Due to these characteristics, water serves as the most useful solvent.
Non aqueous solvents They have sizeable dielectric constants and high ionizing capacities like water. (i) liquid ammonia (ii) liquid SO2 (iii) Anhydrous HF (iv) Anhydrous H2SO4 (v) liquid N2O4
Classification of solvents: (1) Protic and Aprotic solvents (2) Acid solvents, basic solvents and amphiprotic solvents (3) Ionising and Non-ionising solvents
