Multi component analysis (uv visible spectroscopy) by mr. pradeep swarnkar)
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This document discusses multi-component analysis using UV-Visible spectroscopy. It describes using the absorbance values of multiple components at different wavelengths to determine concentration ratios between the components known as Q values. The Q values can then be used to determine the individual concentrations of each component in a mixture.
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Phenanthrene by Mr. pradeep swarnkar
Phenanthrene is a polycyclic aromatic hydrocarbon composed of three fused benzene rings. It appears as a white powder with blue fluorescence. Phenanthrene shows aromatic properties and is the backbone molecule for morphine. It undergoes reactions like oxidation, reduction, bromination, and electrophilic addition or substitution. Derivatives of phenanthrene like papaverine are used as vasodilators to increase blood flow. Phenanthrene and its derivatives have several medicinal uses including manufacturing dyes, acting as antifungals, and being components of steroids, sex hormones, bile acids, and cardiac glycosides.
Naphthalene by Mr. Pradeep Swarnkar
Naphthalene is an aromatic hydrocarbon consisting of two fused benzene rings. It is isolated from coal tar, where it makes up 6-10% of the fraction. Naphthalene crystallizes as white plates with a strong odor. It sublimes readily and is insoluble in water but soluble in organic solvents. Naphthalene undergoes substitution and addition reactions similarly to benzene, though it is somewhat less aromatic. Resonance structures show that the C1-C2 bond has more double bond character, making it shorter than the C2-C3 bond. Naphthalene has several industrial and medical uses including in the production of naphthols, dyes, beta blocker drugs
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