Preliminary Test and Solubility Classification of Organic Compounds
Preliminary Test and Solubility Classification of Organic Compound
Keene Louise Topacio, Christopher Jay Robidillo
Abstract
The experiment focuses on how to classify organic compounds by its functional groups. It is done by preliminary test and with the solubility test. Preliminary test used two known compounds also the unknowns. Physical state, color, odor, and ignition test were noted. The known compounds are inorganic and organic compounds. A comparison is made from the observation in the unknown sample, by which we had concluded that there were two organic compounds and one inorganic among the unknowns.
In order to have a strong background about the solubility test, we first classify organic compounds of known functional group using the said test. Butyl bromide, ethanol sucrose, butyraldehyde, ethanoic acid, methyl amine, nitrophenol, diethyl ether, benzoic acid and propanone were used. It is found out that they are class X, Sn, S, N, Sa, Sb, S, N, A1 and Sn, respectively. We use water, ether, HCl, NaOH, NaHCO3, H2SO4, litmus paper, and phenolphthalein in classifying each compound based on their solubility and color change. It follows a certain scheme on testing the compound. Each test will link to another test until we ended up with the class of that compound.
We finally determine the class of the three unknowns. It is found out to be an Sb - amine -, S -salt -, and an N -aromatic compound-.
Keywords: solubility, classification, organic compounds, solubility test, preliminary test
Introduction
One important part of experimental organic chemistry is to be able to analyze and identify an unknown organic compound from its functional groups. There are several steps in order to acquire this and there is no definite process. But there are systematic ways in different experimental organic chemistry books. For this experiment it will emphasize the preliminary examination and solubility characteristics of some known organic compounds and unknown samples.
Keene Louise Topacio, Christopher Jay Robidillo
Abstract
The experiment focuses on how to classify organic compounds by its functional groups. It is done by preliminary test and with the solubility test. Preliminary test used two known compounds also the unknowns. Physical state, color, odor, and ignition test were noted. The known compounds are inorganic and organic compounds. A comparison is made from the observation in the unknown sample, by which we had concluded that there were two organic compounds and one inorganic among the unknowns.
In order to have a strong background about the solubility test, we first classify organic compounds of known functional group using the said test. Butyl bromide, ethanol sucrose, butyraldehyde, ethanoic acid, methyl amine, nitrophenol, diethyl ether, benzoic acid and propanone were used. It is found out that they are class X, Sn, S, N, Sa, Sb, S, N, A1 and Sn, respectively. We use water, ether, HCl, NaOH, NaHCO3, H2SO4, litmus paper, and phenolphthalein in classifying each compound based on their solubility and color change. It follows a certain scheme on testing the compound. Each test will link to another test until we ended up with the class of that compound.
We finally determine the class of the three unknowns. It is found out to be an Sb - amine -, S -salt -, and an N -aromatic compound-.
Keywords: solubility, classification, organic compounds, solubility test, preliminary test
Introduction
One important part of experimental organic chemistry is to be able to analyze and identify an unknown organic compound from its functional groups. There are several steps in order to acquire this and there is no definite process. But there are systematic ways in different experimental organic chemistry books. For this experiment it will emphasize the preliminary examination and solubility characteristics of some known organic compounds and unknown samples.
References: Baluyut John Y. G., De Castro Kathlia A., Organic Chemistry Laboratory for Chemical Engineering Students Part 2, 2004 Klein, David (2012). Organic Chemistry. Danvers. John Wiley & Sons, Inc., Gilbert, John. Experimental Organic Chemistry: A miniscale and Microscale Approach 5th Ed. Australia, Brooks/Cole Cengage Learning. http://www2.volstate.edu/chem/2020/Labs/classification.pdf http://www.sharjah.ac.ae/English/Academics/CentralLabs/asl/cl/Pages/IdentificationofOrganicCompounds.aspx http://www.wellesley.edu/Chemistry/chem211lab/Orgo_Lab_Manual/Appendix/ClassificationTests/index.html http://wwwchem.uwimona.edu.jm/lab_manuals/c10expt25.html