Oxidation

Bleach Oxidation of 9-Hydroxyfluorene The purpose of this experiment was to oxidize an alcohol (9-hydroxyfluorene) to a ketone (9-fluorenone) using aqueous sodium hypochlorite (bleach) as the oxidizing agent, while introducing techniques used in microscale experiments. Reaction: Results 1. Recrystallized Product Yield Product yield = (actual yield/theoretical yield) x 100% 3mL 9-hydroxyfluorene x (1mL/1000mL) x (0.09 mol/L) = 2.7 x 10-4 moles 0.05g 9-fluorenone / (180.20g/mol) = 2.77 x 10-4

Study of the oxidation of 3,5-di-tert-butylcatechol with molecular oxygen catalyzed by of 5, 10, 15, 20-tetraphenylporphyrinatocobalt(II). M. Hassanein, S. El-Khalafy*, S. Shendy Tanta University, Faculty of Science, Department of Chemistry, Tanta 31527, Egypt. Abstract 5, 10, 15, 20-tetraphenylporphyrinatocobalt(II) showed good catalytic activity towards oxidation of 3,5-di-tert-butylcatechol to 3,5-di-tert-butyl-benzoquinone by dioxygen in dimethylformamide. The oxidation reaction was followed

OXIDATION AND REDUCTION Oxygen makes up only about 20% of the air, yet is the essential component for so many reactions. Without it fuels would not burn, iron would not rust and we would be unable to obtain energy from our food molecules through respiration. Indeed animal life on the planet did not evolve until a certain concentration of oxygen had built up in the atmosphere over 600 million years ago. The term oxidation has been in use for a long time to describe these and other reactions where

chemical solutions. Oxidization is a term many people aren’t familiar with. Oxidation is a type of corrosion, which is the deterioration of metal as a result of its surroundings. Oxidization is the interaction between oxygen molecules and the different substances they come in contact with. But technically oxidation is defined as a process when a substance loses electrons when it interacts with two or more substances. Oxidation actually occurs

solution titrated | 25 mL | 25 mL | Initial volume of MnO4- solution | 2 mL | 15 mL | Final volume of MnO4- solution | 15 mL | 28 mL | Volume of MnO4- added | 13 mL | 13 mL | Calculations: Balancing: Reduction: 8H+ + MnO4- + 5e- -> Mn2+ + 4H2O Oxidation : Fe2+ -> Fe3+ + e- 8H+ + MnO4- + 5e- -> Mn2+ + 4H2O 5Fe2+ -> 5Fe3+ + 5e- Balanced overall: 8H+(aq) +MnO4-(aq) + 5Fe2+(aq) -> 5Fe3+(aq) + Mn2+(aq) + 4H2O(l) Normality: Number of electrons transferred = number of equivalents = 5 Equivalent

I’ve learned mny topics in Consumer Chemistry but one of the mot important lesson and the hardest (for me) is the Redox or Oxidation-Reduction Reaction. Why is it the hardest topic for me? Well, at first, while our teacher was discussing this, I thought that this lesson is pretty easy because I understand all her lessons and I had no problem absorbing the lessons. Butwhen the

binds more tightly to Cu+ than Cu2+ and that it is important to the in vivo oxidation state. Plus, they showed in an earlier study that the slowness of the Cu+ Aβ helps to slow down the production of ROS, which would slow the neurodegeneration seen in AD. Also, the amount of ascorbate that is present in extracellular fluid could generate Cu+, even though in plasma extracellular copper is thought to only be in the Cu2+ oxidation state. The authors acknowledge that this is a controversial finding and that

2.2 Experimental Method Numerical experimental facilities can be used to investigate the oxidation of hydrocarbon, including the JP-8 surrogates. While different facilities have their own advantages on different research with wide ranges of temperature, pressure and residence time, every single research on various facilities is necessary to depict the whole hydrocarbon oxidation mechanism of JP-8 surrogates. In this chapter, a brief review of each of these facilities is described below 2.2.1 Pressure

This experiment performed the second step in a multistep synthesis. The reaction carried out was an oxidation of benzoin to benzil using a recyclable copper catalyst, cupric acetate. The cupric acetate acted as an electron acceptor in a redox type reaction. The benzoin donated an electron to cupric acetate and formed the Cu+ ion while becoming a benzoin radical cation. The benzoin radical cation lost a hydrogen to the Cu+ ion forming acetic acid. Another redox cycle between Cu2+ and the benzoin radical

The Oxidation of Ethanol Ethanol is a primary alcohol and can be oxidized to either an alderhyde or a carboxylic acid. [IMAGE]CH3CH2OH + [O] CH3CHO + H2O [IMAGE]CH3CH2OH + 2[O] CH3COOH + H2O The purpose of this experiment is to oxidize ethanol and then to test the product to determine whether it has been oxidised to ethanal or oxidised to ethanoic acid. Method We added 6cm³ of water to a pear-shaped flask, then added 2cm³ of concentrated sulphuric