Bromothymol blue

ACS,Dye content 95 %

  • Product Code: 127050
  Alias:    Bromothymol blue (BTB); bromothymol blue, bromothymol blue; 3,3'-dibromothymolsulfonylphthalein
  CAS:    76-59-5
Molecular Weight: 624.38 g./mol Molecular Formula: C₂₇H₂₈Br₂O₅S
EC Number: 200-971-2 MDL Number: MFCD00005872
Melting Point: 204 °C Boiling Point:
Density: Storage Condition: room temperature
Product Description: Bromothymol blue is widely used as a pH indicator in various scientific and industrial applications. It is particularly effective in determining the acidity or alkalinity of a solution, with a color change from yellow in acidic conditions (pH below 6.0) 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 or chemical reactions. In microbiology, it is used in culture media to monitor pH shifts 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.
Product Specification:
Test 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 = 0.02G/L; Methanol
Infrared Spectrum Conforms To Structure
Visual Transition Interval Ph6.0 (Yellow-Green) To Ph6.7 (Green) To Ph7.6 (Blue)
Sizes / Availability / Pricing:
Size (g) Availability Price Quantity
5.000 10-20 days ฿630.00
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25.000 10-20 days ฿2,270.00
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100.000 10-20 days ฿6,100.00
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500.000 10-20 days ฿25,000.00
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2500.000 10-20 days ฿85,500.00
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Bromothymol blue
Bromothymol blue is widely used as a pH indicator in various scientific and industrial applications. It is particularly effective in determining the acidity or alkalinity of a solution, with a color change from yellow in acidic conditions (pH below 6.0) 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 or chemical reactions. In microbiology, it is used in culture media to monitor pH shifts 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.
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