Dukes, Albert D. III published an article about the compound: 3,3-Bis(3,5-dibromo-4-hydroxy-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide( cas:76-60-8,SMILESS:CC1=C(Br)C(O)=C(Br)C=C1C2(C3=CC(Br)=C(O)C(Br)=C3C)C4=CC=CC=C4S(O2)(=O)=O ).Category: indole-building-block. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:76-60-8) through the article.
The Henry’s law constant defines the solubility of a gas in a liquid solution In this study, a new method for measuring the Henry’s law constant is described. This new colorimetric method is suited for gases which react with water to form acidic or basic solutions when they dissolve, and makes use of measuring the concentration of two forms of a colorimetric pH indicator. By measuring the concentration of the protonated and deprotonated forms of the indicator with UV-visible absorption spectroscopy, the concentration of the hydronium in solution was determined After determining the hydronium concentration, the equilibrium expression for the dissolved gas reacting with water was solved to determine the concentration of the dissolved gas. The concentration of the dissolved gas and the measured partial pressure of the dissolved gas at equilibrium were then used to calculate the Henry’s law constant for the gas. The efficacy of the method is demonstrated by measuring the Henry’s law constant for carbon dioxide in water over a range of pressures (0.680 – 5.10 atm). The results obtained with this method are comparable to the value for the Henry’s law constant that have been previously reported via more traditional methods, and yielded values for the Henry’s law constant for carbon dioxide that ranged from 3.45 x 10-2 to 3.99 x 10-2 M atm-1.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles