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PHENOL RED SODIUM SALT (ACS) pdf-img printer-img

  • C.A.S. No.
  • 34487-61-1
  • M.F.
  • C19H13O5SNa
  • M.W.
  • 376.36 gm/mole

Specifications:

  • Dye content
  • > 90%
  • Solubility 0.1 % (Water)
  • Clear solution
  • Transition Range
  • pH 6.5 - 8.2 Yellow - Reddish Violet
  • Absorption Maximum (pH 6.5) λ1max
  • 430 - 435nm
  • Absorption maximum (pH 8.2) λ2max
  • 557 - 560nm
  • Absorptivity (A1%/1cm at pH 6.5 at λ1max)
  • 560 - 620
  • Absorptivity (A1%/1cm at pH 8.2 at λ2max)
  • 970 - 1100
  • Loss on drying (110oC)
  • <5%
organic structure
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