What is bromothymol blue in chemistry

ChEBI Ontology. Automatic Xrefs. ChEBI Name. A member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3-bromohydroxyisopropylmethylphenyl groups. Supplier Information. Find compounds which contain this structure Find compounds which resemble this structure Take structure to the Advanced Search.

Roles Classification. Application s :. Related Structures. The bromothymol blue's protonated form has its peak absorption at nm, therefore transmitting yellow light in the acidic solutions. In contrast, the deprotonated form contains its peak absorption at nm, thereby transmitting the blue light in many basic solutions.

Besides, the Bromothymol blue of highly acidic is magenta in color. The bromothymol blue's general carbon skeleton is common to most of the indicators, including thymol blue, bromocresol green, and chlorophenol red. The presence of a single moderate electron-withdrawing group which is a bromine atom and two moderate donating groups which are alkyl substituents are completely responsible for the active indication range of bromothymol blue from a pH value of 6.

While the conjugation is responsible for the nature of the color change range and length, these substituent groups are ultimately responsible for the active range of the indicator.

Bromothymol blue indicator is sparingly soluble in oil but soluble in ether, water, and alkalis' aqueous solutions. It is also less soluble in nonpolar solvents, including toluene, benzene, and xylene, and it is practically insoluble in the petroleum ether.

Let us look at some of the physical properties of bromothymol blue. Covalently-Bonded Unit. Yellow - in acidic solutions; green - in neutral solutions; blue - in basic solutions. Bromothymol blue ph. Bromothymol blue is synthesized by adding elemental bromine to the thymol blue in a solution of glacial acetic acid.

To prepare a solution that is used as a pH indicator, we should dissolve 0. Forgot password? Don't have an account? Sign in via your Institution. You could not be signed in, please check and try again.

Sign in with your library card Please enter your library card number. Related Content Related Overviews indicator. Show Summary Details Overview bromothymol Blue. Reference entries bromothymol blue in A Dictionary of Chemistry 6 Length: 25 words. All rights reserved.