- Color: Dark green to blue (solid powder); changes to yellow, green, or blue in solution depending on pH.
- Material: Bromothymol Blue (C₂₇H₂₈Br₂O₅S)
Usage:
- pH indicator for acid-base titrations and chemical experiments.
- Carbon dioxide detection in biological processes.
- Demonstrating pH changes in educational settings.
How to use:
- Solution Preparation: Dissolve a small amount of Bromothymol Blue powder in ethanol or water to make an indicator solution.
- Application: Add 1-2 drops of the solution to the sample being tested.
- Color Change: Observe the color change to determine pH:
– pH < 6.0: Yellow
– pH 6.0–7.6: Green
– pH > 7.6: Blue. - Storage: Store the powder in a cool, dry place in a tightly sealed container. Keep away from direct sunlight.
Application:
- Laboratory: Acid-base titrations and pH measurement.
- Biological Studies: Carbon dioxide monitoring in respiratory and photosynthesis experiments.
- Educational: Teaching acid-base chemistry.
- Chemical Analysis: Used in industrial and academic pH testing applications.
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