Bromothymol blue
ACS,Dye content 95 %
science Other reagents with same CAS 76-59-5
blur_circular Chemical Specifications
description Product Description
Bromothymol blue is widely used as a pH indicator in various scientific and industrial applications. It exhibits a color change from yellow in acidic conditions (pH below 6.0), green in neutral conditions (pH 6.0-7.6), to blue in basic conditions (pH above 7.6). In educational settings, it is commonly employed in laboratory experiments to visually demonstrate pH changes during titrations, chemical reactions, or respiration studies in plants and small animals by monitoring CO2-induced pH shifts. In microbiology, it is used in culture media to monitor pH changes caused by microbial activity. Additionally, bromothymol blue is utilized in environmental testing to assess the pH of water samples, helping to evaluate water quality. Its ability to provide a clear visual indication of pH makes it a valuable tool in both research and practical applications.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Extinction Coefficient (279-285 Nm) | 9000 |
| Extinction Coefficient (326-332 Nm) | 8000 |
| Extinction Coefficient (419-425 Nm) | 17000 |
| Appearance | Purple and Pink Powder |
| Solubility | 1 mg/L in Ethanol: Clear Yellow Solution |
| Extinction Coefficient | C = 0.02 g/L; Methanol |
| Infrared Spectrum | Conforms To Structure |
| Visual Transition Interval | pH 6.0 (Yellow-Green) to pH 6.7 (Green) to pH 7.6 (Blue) |
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