Tetrabromophenol blue (TBPB)
High-purity grade, ≥95.0% (HPLC)
- Product Code: 111634
Alias:
Tetrabromophenol blue
CAS:
4430-25-5
| Molecular Weight: | 985.54 g./mol | Molecular Formula: | C₁₉H₆Br₈O₅S |
|---|---|---|---|
| EC Number: | 224-622-9 | MDL Number: | MFCD00005876 |
| Melting Point: | 204 °C (dec.)(lit.) | Boiling Point: | |
| Density: | Storage Condition: | room temperature |
Product Description:
Tetrabromophenol blue (TBPB) is primarily used as a pH indicator in various chemical and biological applications. It is commonly employed in laboratory settings to determine the acidity or alkalinity of solutions, particularly in titration experiments. TBPB exhibits a color change from yellow to blue over a pH range of approximately 3.0 to 4.6, making it useful for identifying pH transitions in this range.
In microbiology, TBPB is utilized in culture media to monitor pH changes caused by microbial growth, aiding in the identification and study of microorganisms. Additionally, it is used in educational demonstrations to visually illustrate pH concepts and chemical reactions. Its distinct color change and stability make it a reliable tool for both research and teaching purposes.
Product Specification:
| Test | Specification |
|---|---|
| Absorbance (0.5 Mg/Dl, Ph 4.6, 610.0 - 614.0 Nm) | ≥0.3 |
| Ignition Residue (As Sulfate) | 0-0.1 |
| Loss On Drying | 0-3 |
| Purity (Hplc) | 95-100 |
| Transition Interval (Ph) | 3.0-4.6 |
| Appearance | White To Yellow To Brown To Grey Powder Or Chunks |
| Infrared Spectrum | Conforms To Structure |
| Solubility In Ethanol | Pass |
| SOLUBILITY IN ETHANOL | PASS |
Sizes / Availability / Pricing:
| Size (g) | Availability | Price | Quantity |
|---|---|---|---|
| 1.000 | 10-20 days | $73.81 |
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| 5.000 | 10-20 days | $321.63 |
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Tetrabromophenol blue (TBPB)
Tetrabromophenol blue (TBPB) is primarily used as a pH indicator in various chemical and biological applications. It is commonly employed in laboratory settings to determine the acidity or alkalinity of solutions, particularly in titration experiments. TBPB exhibits a color change from yellow to blue over a pH range of approximately 3.0 to 4.6, making it useful for identifying pH transitions in this range.
In microbiology, TBPB is utilized in culture media to monitor pH changes caused by microbial growth, aiding in the identification and study of microorganisms. Additionally, it is used in educational demonstrations to visually illustrate pH concepts and chemical reactions. Its distinct color change and stability make it a reliable tool for both research and teaching purposes.
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