Oxygen Flask Combustion Method

- Authors: Kamya Goyal1, Navdeep Singh2, Shammy Jindal3, Rajwinder Kaur4, Anju Goyal5, Rajendra Awasthi6
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View Affiliations Hide AffiliationsAffiliations: 1 Laureate Institute of Pharmacy, Jawalamukhi, Himachal Pradesh, India 2 Laureate Institute of Pharmacy, Jawalamukhi, Himachal Pradesh, India 3 Laureate Institute of Pharmacy, Jawalamukhi, Himachal Pradesh, India 4 Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 5 Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 6 Amity Institute of Pharmacy, Amity University Uttar Pradesh, Noida, Uttar Pradesh, India
- Source: Advanced Techniques of Analytical Chemistry: Volume 1 , pp 113-119
- Publication Date: February 2022
- Language: English
This method was invented by Wolfgang Schoniger in 1955 and it is useful technique utilized for the estimation and identification of some combusting organic compounds of sulfur or halogen in medicine. These compounds include chlorine, bromine, fluorine, sulfur, etc. This technique was also named as Schoniger oxygenflask technique, and it has been modified to tracing, and analyzing the compounds. The compounds which are organic and some other polymers all these are experimented by this technique in microgram amount. A 500 ml conical flask of heavy wall was used in this method. The test solution was prepared in two different ways for solid as well as liquid samples. For solid samples the required quantity of selected sample in a specific amount at the center part of filter paper were used. For liquid samples appropriate quantity of absorbent cotton along with filter paper of size (50 mm-length/5 mm-width) was used. The procedure of the determination of chlorine, and bromine, Iodine, Fluorine, and Sulfur were discussed. The chlorine and bromine test was experimented with the help of blank solution in a same quantity to make necessary correction. The Iodine test was experimented with the help of blank solution in a same quantity to make necessary correction. Fluorine test was performed with the required prepared solutions under ultraviolet visible spectrophotometry. Lastly, the sulfur test was performed with required quantity of blank solution in a same manner. This method covers the introduction part along with method of sample preparation, and the important applications of oxygen flask method were studied.
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