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THYMOL BLUE SODIUM SALT (ACS) pdf-img printer-img

  • C.A.S. No.
  • 62625-21-2
  • M.F.
  • C27H29SO5Na
  • M.W.
  • 488.58 gm/mole

Specifications:

  • Dye conent (Spectrophotometric)
  • > 90%
  • Solubility 0.1 % (Water)
  • Clear solution
  • Transition Range
  • pH 7.8 – 9.5 Yellow - Blue
  • Absorption maximum (pH 7.8) λ1max
  • 431-437nm
  • Absorption maximum (pH 9.5) λ2max
  • 594-598nm
  • Absorptivity (A1%/1cm at pH 7.8 at λ1max)
  • 190-285
  • Absorptivity (A1%/1cm at pH 9.5 at λ2max)
  • 425-525
  • Loss on drying (110oC)
  • < 5%
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