Bromthymol blue is a chemical compound that is commonly used as a pH indicator in laboratory experiments. It is a yellowish-green powder that changes color depending on the acidity or alkalinity of a solution. In this article, we will explore the definition and meaning of bromthymol blue, as well as its origin, associations, synonyms, antonyms, and example sentences.
Definitions
Bromthymol blue is a pH indicator that is commonly used to test the acidity or alkalinity of a solution. It is a synthetic dye that is soluble in water and alcohol. When added to a solution, it changes color from yellow to blue depending on the pH level of the solution.
Origin
Bromthymol blue was first synthesized in 1906 by the German chemist Leonhard Michaelis. It was originally used as a dye for textiles and paper, but it was later discovered to be an effective pH indicator. Today, bromthymol blue is widely used in laboratory experiments and in the medical field.
Meaning in different dictionaries
According to the Merriam-Webster dictionary, bromthymol blue is defined as “a greenish-yellow crystalline powder C27H28Br2O5S used as an acid-base indicator and in the detection of carbon monoxide poisoning.”
The Oxford English Dictionary defines bromthymol blue as “a synthetic dye used as an acid-base indicator in analytical chemistry.”
Associations
Bromthymol blue is commonly associated with laboratory experiments and the medical field. It is often used to test the pH level of solutions and to detect carbon monoxide poisoning.
Synonyms
Some synonyms of bromthymol blue include:
- BTB.
- Dibromothymolsulfonphthalein.
- Bromothymol sulfone phthalein.
- Bromothymol blue sodium salt.
- 3,3′-Dibromothymolsulfonphthalein.
Antonyms
There are no direct antonyms of bromthymol blue, as it is a specific chemical compound with a unique function.
The same root words
Bromthymol blue contains the root words “brom” and “thymol.” “Brom” refers to the element bromine, which is a halogen that is commonly used in chemical reactions. “Thymol” is a natural compound that is found in thyme oil and is used as an antiseptic.
Example Sentences
Here are some example sentences that use the term “bromthymol blue”:
- The chemist used bromthymol blue to test the pH level of the solution.
- The doctor used a bromthymol blue test to detect carbon monoxide poisoning in the patient.
- The student added a few drops of bromthymol blue to the solution and observed the color change.
- The laboratory technician mixed bromthymol blue with the sample to determine its acidity.