PPT-Recrystallization and Melting Point

January 19 Purification and Characterization Purification separation of target compound from impurities Characterization Identity Do I have what I think I have Purity How pure is the compound. Lanthanides and Actinides . By: Danielle, . Krysti. , Lauren, and Nate . Rare-Earth Metals . Sm. - Samarium (2 Valence Electrons) . Tb- . Terbium . (3 Valence Electrons) . . Europium- . Eu. . Lanthanides . OptiMelt — Automated melting point system By Chad . Macziewski. MSE Seminar. 12/10/15. What is Arc Melting?. Process using an electric arc capable of melting most materials. What is Arc Melting?. Process using an electric arc capable of melting most materials. Do Now: Water boils at _____torr, ____1atm, _______mm Hg, ______kPa . Review: . Name the phase change. S .  L. L  G. G  L. L  S. S  G. G  S. Melting (fusion). Boiling (vaporization). and Melting Point. Intermolecular Forces. Hydrogen bonding. Acceptor/donor. Dipole/dipole. Dipole/induced dipole. Induced dipole/induced dipole. Also called London dispersion forces. VDWs Forces. General Principles. GLY 4200 . Fall, 2016. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. Melting . Point. Summer 2012. Purification and Characterization. Purification: separation of target compound from impurities. Characterization. Identity: Do I have what I think I have?. Purity: How pure is the compound?. Microstructure-Properties. Lecture . 2: . Recrystallization. Theoretical & Practical Aspects. Profs. A.D. Rollett, M. De Graef. Updated . 27. th. September, . 2015. 2. Objectives. The main objective of this lecture is to introduce you to the process of recrystallization and to prepare you for a laboratory exercise on this topic.. Number : 24. Symbol : Cr. P. lating. Properties of Chromium. High Conductivity. High Melting Point and Boiling Point . (Melting Point : 1907. ℃ . , Boiling Point : 2671. ℃. ). Ductility and Malleability. Introduction. The acidity of organic compounds is often determined . by . neighboring groups because . they . can help stabilizing . the . resulting anion (i.e., halogen, nitro, etc.) because of . their . Fall, 2017. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. Annttiiooxxiiddaanntt JAppearance White Powder Melting Range 110Volatile 05 Solubility 2g/20ml Toluene Limpidity Light Transmittance 425nm 96 500nm 98 Ash Content . Solid organic compounds when isolated from organic reactions are usually impure; they are usually contaminated with small amounts of other compounds that are produced along with the desired compound. The purification of impure crystalline compounds is usually done by recrystallization from a suitable solvent or a mixture of solvents.. Hawzhin A. Salih. MSc. in medicinal chemistry. Hawzhin.salih@univsul.edu.iq. Lab policies . Punctuation. Safety issues. Mobile phone. Mark divisions. Outline . Physical and chemical properties. What is MP.