Preview

Oxygen Bearing Compounds

Better Essays
Open Document
Open Document
1648 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Oxygen Bearing Compounds
Analysis of Oxygen Bearing Organic Compounds

James Matthew Jocson*, Gianvittorio Lanta, Chiqui Ann Llamado, Jeron Manaig
College of Science Department of Biology University of Santo Tomas, Manila, Philippines

Abstract Five oxygen-bearing organic compounds were given namely Methanol, 2-propanol, tert - butanol, formalin, and acetone. Different tests were done to each sample to differentiate their characteristics. These test were Dichromate test, Tollens Test, DNPH test, Iodoform Test, and Lucas Test. This was conducted to classify the samples from being a primary alcohol, a secondary alcohol, a tertiary alcohol, aldehyde, or a ketone.
Introduction
In analyzing the oxygen bearing organic compounds, there are several tests that may be performed to distinguish among the different classes of alcohols, aldehydes, and ketones. All these tests exploit differences in the type and degree of reactivity of each of the functional groups. Several different oxidizing agents may be used to cause theoxidation of molecules. Potassium permanganate (KMnO4) or potassium dichromate (K2Cr2O7) or even atmospheric oxygen (O2) are oxidizing agents. An aldehyde is an organic compound containing a formyl group. This functional group, with the structure R-CHO, consists of a carbonyl center (a carbon double bonded to oxygen) bonded to hydrogen and an R group, which is any generic alkyl or side chain. The group without R is called the aldehyde group or formyl group. Aldehydes differ from ketones in that the carbonyl is placed at the end of a carbon skeleton rather than between two carbon atoms. Aldehydes are common in organic chemistry. Many fragrances are aldehydes.
A ketone is an organic compound with the structure RC(=O)R', where R and R' can be a variety of carbon-containing substituents. It features a carbonyl group (C=O) bonded to two other carbon atoms.
Methanol is a chemical with the formula CH3OH (often abbreviated MeOH). It is the simplest alcohol, and is a light, volatile,

You May Also Find These Documents Helpful

  • Good Essays

    The reactivity of alcohols can be accounted for by their molecular structure – particularly by the attachment of their hydroxyl functional group. The isomers of butanol are used as examples of 1°,2° and 3° alcohols to examine this relationship. Each of the three isomers of butanol will be mixed with concentrated hydrochloric acid. The presence of an alkyl halide product is indicated by cloudiness of the mixture, as the halides are only slightly soluble in water. This test indicates that a halogenation reaction has taken place. Each alcohol is also separately mixed with dilute potassium permanganate solution, which…

    • 732 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Ap Biology Unit 1 Summary

    • 2660 Words
    • 11 Pages

    * A glycerol is a three carbon alcohol containing a hydroxyl (OH) group attached to each carbon…

    • 2660 Words
    • 11 Pages
    Powerful Essays
  • Good Essays

    Methanol is a primary alcohol because it is bonded with one alkyl group, so it means that it can be oxidized to either aldehydes or carboxylic acids, depending on the reaction condition, but in this reaction formaldehyde is formed which is an aldehyde. The reaction (see Figure 2) forms an aldehyde because the used an excess of the alcohol, this means that there is not enough oxidizing agent present.…

    • 1237 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Aromatic ring, double bond, alcohol (a) Alcohol (d) Amine (b) Aromatic ring (e) both ketone and amine (c) Carboxylic acid (f) two double bonds…

    • 2612 Words
    • 11 Pages
    Satisfactory Essays
  • Good Essays

    Unknown A (Module 11A)

    • 686 Words
    • 3 Pages

    The purpose of Module 11A was to test for the presence or absence of a particular set of functional groups through the use of wet chemical tests. In this manner, Unknown A which was a colorless solution, was first tested with 2,4-DNP which after mixing for a few seconds formed a bright yellow precipitate. Although this confirms the presence of either a ketone or aldehyde group, one simple chemical test does not completely specify the presence or absence of other functional groups. Therefore, a second test was made in order to test for the presence of alkyl halides (R-Br or R-I specifically). However, after the addition of alcoholic silver nitrate, AgNO3 (test #2) to a few drops of the unknown, the mixture remained colorless and no precipitate formed. Following this, the third test was performed in…

    • 686 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Oxidation was found for primary alcohol. When 6 drops of potassium dichromate and 1 drop of concentrated sulfuric acid were added to 1-pentanol, the color of 1-pentaol turned into dark green. In second experiment, precipitation was found when 6 drops of 2,4-dinitrophenylhydrazine were added to both 5 drops of benzaldehyde and 5 drops of acetophenone. Based on these data, it is possible to find alcohol by oxidation and aldehyde by observing precipitation…

    • 558 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Chem 121

    • 2107 Words
    • 9 Pages

    •Alcohols are classified by the number of C atoms bonded to the C with the OH group.…

    • 2107 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    The purpose of the experiment was to oxidize and identify an unknown alcohol using hypochlorite, or household bleach. During the experiment, the bleach oxidized the secondary unknown alcohol into a liquid ketone which was distilled or boiled to find the boiling point and then identified using a chart of unknown identities and boiling points. The oxidation of the unknown alcohol was done through the mixing of the unknown alcohol, glacial acetic acid, and bleach. Through the procedure of oxidation over a period of two lab days,…

    • 649 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    22. A student heats 0.5585 g of iron with 0.3550 g of sulfur. She reports that she obtains 0.8792 g of iron sulfide and recovers 0.0433 g of unreacted sulfur. Show by calculation whether or not her results obey the law of conservation of mass.…

    • 1125 Words
    • 5 Pages
    Satisfactory Essays
  • Better Essays

    Unknown Mixture

    • 2165 Words
    • 9 Pages

    The purpose of this experiment was to separate and identify the two unknown compounds. The sample used was 105 and it contain 2-propanol and 2-heptanone. IR spectrums were taken of the contents of the second and sixth test tubes and showed the presence of an OH functional group and a small amount of ketone in test tube two and a large presence of ketone in test tube six. The average boiling points of the test tubes, 73°C and 162°C respectively, were compared to the boiling points in the tables of alcohols and ketones found in the back of the lab manual. Test tube two was comparable to methanol, ethanol, 2-propanol, and 2-methyl-2-propanol. Upon inspection of the IR spectrums, 2-propanol was a match.…

    • 2165 Words
    • 9 Pages
    Better Essays
  • Good Essays

    The alkanes are the least complex hydrocarbons. The alkane family uses the prefix for the number of carbons and an -ane ending. An alkane can be recognized by its general formula, CnH2n+2, where n is the number of carbon atoms in the compound. For example, C5H12 has five carbon atoms pentane. Each member of the alkane family differs from the next by a — CH2 — group, and all the carbons are connected by single bonds.…

    • 1682 Words
    • 7 Pages
    Good Essays
  • Good Essays

    4.03: the Power of Images

    • 576 Words
    • 3 Pages

    hydrogen atom of the OH can be replace by an active metal; dehydration cause the production of unsaturated compounds of ether; and the OH may be replaceed by other functional groups. The production of oxidation depends on the class of the alcohol. Primary alcohols oxidize to aldehydes and secondary alcohols oxidize to ketones. Tertiary alcohol do not oxidize readily and they give produce containing fewer carbon atoms than the original compound.…

    • 576 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    3 reactions of isomers

    • 371 Words
    • 2 Pages

    To test the reactions of primary, secondary, and tertiary alcohols with acid and with an oxidizing agent.…

    • 371 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    PurposeIn this experiment, sodium hypochlorite (NaOCl) in acetic acid mixture was used to oxidize emdo-borneol (an alcohol) to camphor (a ketone). The product would then be purified by sublimation and then be analyzed by Infrared spectroscopy and melting point test.…

    • 854 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Solubility

    • 2656 Words
    • 11 Pages

    Br alkyl bromide (bromo) alkene (alkenyl) O O H aldehyde ketone (carbonyl) alkyne (alkynyl) O…

    • 2656 Words
    • 11 Pages
    Good Essays

Related Topics