Analysis of Ketones, Aldehydes, and Alcohols
Analysis of Alcohols, Aldehydes and Ketones
Karl Wayne Mancao, Raphaell Mordeno, Andres Pastrana III*, and Shannen Peñaverde
Department of Biology, University of Santo Tomas, Manila, Philippines
Abstract The proponents have done several tests for identifying alcohols, aldehydes and ketones. These tests are Dichromate test, Tollens test, Lucas test, DNPH test and Iodoform test. Three samples got positive result in dichromate test and one in Tollens test. Lucas test got one sample that has a positive result, DNPH test got two positive results and Iodoform test also got two. All unknowns are identified from which of the samples are they. Alcohols, aldehydes and ketones are excellently recognized after the experiment.
Introduction
Oxygen is a chemical element that most living things need. It surrounds the atmosphere and sustains our life to the fullest. It has an atomic number of eight and with a symbol O. It is also the third most abundant element in the universe and makes up the 21% in the earth atmosphere. The ozone layer that protects earth the UV lights are made up of oxygen. It was discovered by Charles Fabry and Henri Buisson on 1931. Oxygen isn’t all about a need in earth’s atmosphere but it is also very important in organic materials [12] [16]. Functional groups are specific atoms that are grouped to make up a molecule that constitutes a chemical behavior. Similar functional groups will be observed with the same chemical behavior regardless of the size of the molecule. These characteristics may be flammable, will have precipitation to a certain chemical, an acid and etc. With functional groups, the researcher can identify the chemical characteristics of an organic material. Since they are organic materials, functional groups have a backbone of carbon with attached hydrogen. There are some functional groups that can exhibit a primary (1o), secondary (2o), and tertiary (3o) ranking. These ranking is based on how many carbon are attached to
Karl Wayne Mancao, Raphaell Mordeno, Andres Pastrana III*, and Shannen Peñaverde
Department of Biology, University of Santo Tomas, Manila, Philippines
Abstract The proponents have done several tests for identifying alcohols, aldehydes and ketones. These tests are Dichromate test, Tollens test, Lucas test, DNPH test and Iodoform test. Three samples got positive result in dichromate test and one in Tollens test. Lucas test got one sample that has a positive result, DNPH test got two positive results and Iodoform test also got two. All unknowns are identified from which of the samples are they. Alcohols, aldehydes and ketones are excellently recognized after the experiment.
Introduction
Oxygen is a chemical element that most living things need. It surrounds the atmosphere and sustains our life to the fullest. It has an atomic number of eight and with a symbol O. It is also the third most abundant element in the universe and makes up the 21% in the earth atmosphere. The ozone layer that protects earth the UV lights are made up of oxygen. It was discovered by Charles Fabry and Henri Buisson on 1931. Oxygen isn’t all about a need in earth’s atmosphere but it is also very important in organic materials [12] [16]. Functional groups are specific atoms that are grouped to make up a molecule that constitutes a chemical behavior. Similar functional groups will be observed with the same chemical behavior regardless of the size of the molecule. These characteristics may be flammable, will have precipitation to a certain chemical, an acid and etc. With functional groups, the researcher can identify the chemical characteristics of an organic material. Since they are organic materials, functional groups have a backbone of carbon with attached hydrogen. There are some functional groups that can exhibit a primary (1o), secondary (2o), and tertiary (3o) ranking. These ranking is based on how many carbon are attached to