Indicator solution pH 6.8 - 8.4 (phenol red)
The indicator solution with phenol red is designed for applications where a pH range of 6.8 to 8.4 is critical. Its use spans a wide range, including diverse chemical processes as well as biological and medical research.
Phenol Red is characterized by its ability to indicate distinct color changes depending on the pH of the solution. In the indicated pH range, phenol red changes from yellow (pH 6.8) to deep red (pH 8.4), providing an immediately visually recognizable indication of pH.
Chemically, phenol red is a weak acid-base indicator whose color change is due to the ionization process of the molecule. The ionization process results in structural changes that affect the absorption wavelength of the molecule and thus its color.
The operation of this indicator solution is based on the color change of phenol red, which appears yellow at a pH of 6.8 and becomes red at a pH of 8.4. This distinctive color change provides a quick and accurate way to determine pH in a variety of applications.
Phenol Red is characterized by its ability to indicate distinct color changes depending on the pH of the solution. In the indicated pH range, phenol red changes from yellow (pH 6.8) to deep red (pH 8.4), providing an immediately visually recognizable indication of pH.
Chemically, phenol red is a weak acid-base indicator whose color change is due to the ionization process of the molecule. The ionization process results in structural changes that affect the absorption wavelength of the molecule and thus its color.
The operation of this indicator solution is based on the color change of phenol red, which appears yellow at a pH of 6.8 and becomes red at a pH of 8.4. This distinctive color change provides a quick and accurate way to determine pH in a variety of applications.
Article no.: 13664
pH detection by color change (indicator solution)
Important Information
UN-Nummer: 1170
Warning labels:
Lagerung: 15 … 25 °C
Haltbarkeit: 12 Monate
product information
Relevant Ingredients:
• Ethyl alcohol
• 3,3-bis-<4-hydroxy-phenyl>-3H-benz<c><1,2>oxathiol-1,1-dioxide
Hazard and safety instructions
| Signal Word 1: Gefahr |
| Signal Word 2: flamme, exclam, , |
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Warning labels: |