MERCK – 105228 m-Cresol Purple

Specifications :

  • Identity (UV/VIS-Spectrum) : passes test
  • Appearance of solution (1 g/l; water) : passes test
  • 1st transition range : pH 1.2 – pH 2.8 pink – yellow
  • 2nd transition range : pH 7.4 – pH 9.0 brownish yellow – violet
  • Absorption maximum λ 1 max. (buffer pH 1,2) : 526 – 529 nm
  • Absorption maximum λ 2 max. (buffer pH 2,8) : 431 – 437 nm
  • Absorption maximum λ 3 max. (buffer pH 7,4) : 431 – 437 nm
  • Absorption maximum λ 4 max. (buffer pH 9,0) : 576 – 580 nm
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MERCK – 105228 m-Cresol Purple

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