• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Oxidation of ethanol

Extracts from this document...

Introduction

The oxidation of Ethanol Safety The Chemicals used in the experiment were: * Ethanol * Sodium Dichromate * Sulphuric Acid * Universal Indicator * 2, 4-dinitrophenylhydrazine The above chemicals did have some hazards when in the context of this experiment. Due to these hazards I wore a lab coat to protect from things like the Na2Cr2O7, which stains, also I wore protective glasses to prevent things from entering my eyes. Below are the hazards. Ethanol * Highly flammable above 13�C causing a narcotic effect if inhalation of the vapour occurs. ...read more.

Middle

Observations During the course of the experiment I wrote down a few observations including smells, colours etc. Below are the observations for the experiment in the order of observing them. 1. At the very beginning when I added the concentrated sulphuric acid to the water I noticed as I held the pear shaped flask that it began to heat up. This meant that the reaction between the acid and the water was an exothermic one meaning it gave out heat to the surroundings as energy was released. 2. The next step involved mixing of the sodium dichromate, which was a bright orange solid, and the water with the ethanol, which was a clear solution. ...read more.

Conclusion

At this time I began to gradually add the orange solution so as to maintain the boiling of the ethanol and water solution. As soon as the orange solution mixed with the sodium dichromate & water solution it turned a dark green. The colour of my distillate was not colourless, but very light yellow. 4. During the first test universal indicator was added to the distillate. This resulted in a very bright red solution, means that the distillate is a strong acid (a 1-2 on the pH scale). 5. During the second test, 2, 4-dinitrophenylhydrazine was added to the distillate. The mixture turned orange with a precipitate. Rohan Malhotra The Oxidation of ethanol AS - Assessed Practical (Skill I) ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Organic Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Organic Chemistry essays

  1. The aim of this experiment is to produce Aspirin. This is an estrification in ...

    Standard solutions can be chemically reacted with a solution of unknown concentration in order to determine the concentration of the unknown The acetylsalicylic acid and NaOH react in a 1:1 ratio. The NaOH solution was made to a concentration of 250cm3 1.0 mol dm-3.

  2. investigating the amount of ascorbic acid present in fruit

    to the flask by using a 1ml graduated pipette. 6. Measure accurately 6.00ml of distilled water by using a 10ml measuring cylinder. 7. Add this to the 250cm3 conical flask too, then place a rubber bung onto the flask so that the solution doesn't get oxidised.

  1. Comprehensive and Detailed Chemistry notes

    flame resistant with additives, water resistant rigid pipes and gutters, flexible raincoats and shower curtains styrene ethenylbenzene polystyrene transparent, due to few crystals, when gas added forms foam compact disc cases, heat insulation, floats 2. SOME SCIENTISTS RESEARCH THE EXTRACTION OF MATERIALS FROM BIOMASS TO REDUCE OUR DEPENDENCE ON FOSSIL

  2. Oxidation of Ethanol

    that any ethanal produced would not evaporate up through the dropping funnel, instead of being collected. (Ethanol has a boiling point of around while ethanal has a boiling point of . Room temperature on the day was around to )

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work