Products / pH Indicators

Show all minimise

THYMOL BLUE (ACS) pdf-img printer-img

  • C.A.S. No.
  • 76-61-9
  • M.F.
  • C27H30O5S
  • M.W.
  • 466.60 gm/mole

Specifications:

  • Dye Content
  • > 95%
  • Solubility 0.1 % (95% EtOH)
  • Clear solution
  • Transition Range
  • pH 7.8 – 9.5 Yellow - Blue
  • Absorption maximum (pH 7.8) λ1max
  • 431-436nm
  • Absorption maximum (pH 9.5) λ2max
  • 594-598nm
  • Absorptivity (A1%/1cm at pH 7.8, at λ1max)
  • 200-300
  • Absorptivity (A1%/1cm at pH 9.5, at λ2max)
  • 450-550
  • Loss on drying (110oC)
  • < 3%
organic structure
Site Designers - Momentum ads