bromothymol blue
Acid-base detector
Bromothymol blue is a chemical compound used as a pH indicator, turning yellow in acidic solutions and blue in alkaline ones.
It appears in science classrooms to test acidity and in aquariums to monitor water quality.
The compound also detects carbon dioxide in respiration experiments, shifting color as exhaled breath acidifies a solution.
Substance prompting chemical change
- solutionAnswer or liquid mixture
- pipetteGraduated liquid transfer tube
- buretteCalibrated tube for titration
- flaskPortable liquid container
beaker · test tube · dropper · spectrophotometry · analytical chemistry · glassware · stock solution · dilution
Light-to-sugar conversion in plants
- respirationGas exchange in organisms
- aquariumTank for keeping fish
- carbon dioxideRespiration byproduct, photosynthesis fuel
- algaePrimitive aquatic photosynthesizers
fish tank · cellular respiration · fermentation · yeast · dissolved oxygen · aquatic
Measure of solution acidity
- acid-baseProton donor-acceptor chemistry
- titrationMeasuring concentration by addition
- endpointFinal point reached
- neutralizationCanceling opposing forces
phenolphthalein · litmus · buffer solution · equivalence point · acidity · alkalinity · pH scale · hydrogen ions
Hue between green and orange
- greenColor of vegetation
- transitionChange from one state
- neutralNot favoring any side
- acidicBelow neutral pH
alkaline · hue · spectrum · chromatic · absorbance · wavelength · photometric · color shift
reagent
Substance prompting chemical change
- solutionAnswer or liquid mixture
- pipetteGraduated liquid transfer tube
- buretteCalibrated tube for titration
flask · beaker · test tube · dropper · spectrophotometry · analytical chemistry · glassware · stock solution · dilution · preparation
photosynthesis
Light-to-sugar conversion in plants
- respirationGas exchange in organisms
- aquariumTank for keeping fish
- carbon dioxideRespiration byproduct, photosynthesis fuel
algae · fish tank · cellular respiration · fermentation · yeast · dissolved oxygen · aquatic
pH
Measure of solution acidity
- acid-baseProton donor-acceptor chemistry
- titrationMeasuring concentration by addition
- endpointFinal point reached
neutralization · phenolphthalein · litmus · buffer solution · equivalence point · acidity · alkalinity · pH scale · hydrogen ions · colorimetric
yellow
Hue between green and orange
- greenColor of vegetation
- transitionChange from one state
- neutralNot favoring any side
acidic · alkaline · hue · spectrum · chromatic · absorbance · wavelength · photometric · color shift · turning point
- Titrationtitration, analyte, endpoint, burette, buret
- Bromine Compoundsbromide, tribromide, bromate, ethidium bromide
- lab reagentsreagent, buffer, buffers, formalin, pyridine
- pH ChemistrypH, acid, acids, base, bases
- pH indicatorslitmus, litmus paper, phenolphthalein, pH paper, pH strips
- culture mediaagar, broth, TSA, TSB, PDA