Bromocresol purple

Liên hệ

  • Mã sản phẩm
  • Tình trạng:
  • GRM119-5G
  • Còn hàng
Số lượng: Mua hàng
Technical Specification 
Appearance : Grey to light purple or pink to yellow-tan crystals or powder 
Solubility : 20 ppm in 50% ethanol yields clear solution 
Visual pH Transition : pH 5.20 (yellow) - pH 6.80 (purple) 
FTIR (KBr disc) : Matches with the standard pattern Absorption maxima (pH 5.2) : 426 - 436 nm (20 ppm in 50% ethanol) Absorption maxima (pH 6.8) : 584 - 594 nm (20 ppm in 50% ethanol) Absorptivity 1 : 400 - 450 (20 ppm in 50% ethanol, at 426 - 436 nm) 
Absorptivity 2 : 1000 - 1100 (20 ppm in 50% ethanol, at 584 - 594 nm) 
Loss on drying (at 110°C, 2hr) : <= 5.0% 

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