What is combustion analysis?
In chemistry, the combustion analysis is used to determine the atomic composition of the substance. Using this method, the chemist can take a precisely measured weight of the unknown substance and burn it under controlled conditions to analyze the combustion products and thus determine the empirical pattern of the sample. The empirical formula of the substance refers to the type of atoms that form the substance, and the relative numbers of each type of atom, expressed as the simplest ratio in the whole numbers. For this reason, the empirical formula in organic chemistry is sometimes referred to as the simplest formula.
While the methods of combustion analysis may allow scientists to determine the empirical formula of the unknown substance, it does not provide information about the molecular formula or the structural formula of the substance. These two formulas provide additional information that cannot be detected by combustion analysis. The molecular change is similar to an empirical formula, except that in addition to the type and relative ratio of each type of atom, it also shows the absolute number of atoms in each substance molecule. Structural pattern of PosIt flows even more information by showing exactly how the atoms in the molecule are connected to each other.
combustion analysis is mainly used to determine empirical patterns of unknown organic compounds based on carbon. Since the sample of the original compound is burned, in the presence of oxygen carbon atoms from the sample are converted into carbon dioxide and hydrogen atoms are converted into water. Carbon dioxide is known as "carbon oxide" because it consists of a carbon atom associated with two oxygen atoms. Water is hydrogen oxide because it consists of two hydrogen atoms associated with one oxygen atom. Similarly, other elements that are depleted in the original sample will be converted to oxides of the original elements during the combustion process.
The gas analyzer used to analyze the combustion usually consists of a heated combustion chamber, which is supplied with a stream of oxygen and a series of traps. A current of oxygen passes to sleepThe ovation chamber and how the analyzed sample is burned, this flow of oxygen carries combustion products. These products are in the form of gases that are maintained in the output trap where they can be measured to complete the analysis.