Why acetaldehyde and acetone cannot be distinguished by LiAlH 4. Acetone and ethanol are organic compounds. We report here for the first time, on the comparative studies of the photophysical and optical limiting behavior of our two novel phthalocyanines namely 2(3), 9(10), 16(17), 23(24)-tetrakis-(4-(5-methylhex-1-yn-3-yloxy)) phthalocyanines 2, and 2(3), 9(10), 16(17), 23(24)-tetrakis-(4-(5-methylhex-1-yn-3-yloxy)) phthalocyaninato zinc (II) (3) in solution and thin films. The corrosion resistant properties of clay polymer nanocomposite (CPN) coatings were characterized by electrochemical impedance spectroscopy (EIS), open circuit potential measurements (OCP) and water adsorption test. The major by-product other than methanol was 2-methylcyclopentanone. In this reaction, bleaching powder acts as an oxidizing chlorinating and hydrolyzing agent.