CRESOL RED Meaning and
Definition
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Cresol red is a synthetic dye used as an acid-base indicator in various scientific, medical, and laboratory applications. It belongs to the class of pH indicators, which are substances that change color depending on the pH level of a solution. Specifically, cresol red is commonly employed for measuring pH in acidic or slightly alkaline environments.
In its chemical structure, cresol red typically consists of a dye molecule that contains three cresol groups. These cresol groups are organic compounds derived from phenol, characterized by a methyl group (-CH3) attached to the benzene ring. The presence of these cresol groups enables cresol red to exhibit color changes.
Under certain pH conditions, cresol red appears yellow, while under different pH conditions, it turns red. The color transition occurs within a pH range of approximately 1.2 to 2.8, with the yellow form indicating lower pH values and the red form indicating higher pH values. This color change is due to the shifting of the equilibrium between protonated and unprotonated forms of the dye.
Due to its distinct pH color response, cresol red is widely used in various applications. It is frequently employed in microbiology to distinguish between different species of bacteria based on their pH requirements. Moreover, it is employed in medical diagnostics, where the color change can provide valuable information about the acidity or alkalinity of various body fluids, such as urine or blood.
Common Misspellings for CRESOL RED
- xresol red
- vresol red
- fresol red
- dresol red
- ceesol red
- cdesol red
- cfesol red
- ctesol red
- c5esol red
- c4esol red
- crwsol red
- crssol red
- crdsol red
- crrsol red
- cr4sol red
- cr3sol red
- creaol red
- crezol red
- crexol red
- credol red
Etymology of CRESOL RED
The word "cresol" originates from the combination of two Greek words: "kreas" meaning "flesh" and "oleum" meaning "oil". In chemistry, it refers to a class of aromatic organic compounds derived from coal tar or petroleum.
The word "red" comes from the Old English word "read", which was derived from the Proto-Germanic word "raudaz". It has the same origin as the words "ruddy" and "ruby" and refers to the color red.
When these two words are combined, "cresol red" simply indicates a red-colored compound belonging to the cresol class.
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