1-NAPHTHOLPHTHALEIN

Product Code : 04770




Specifications

Appearance Light Pink to Beige to Red-Brown Powder
Infrared spectrum Conforms
Absorption maxima (0.1N NaOH) 648 to 654 nm
Specific absorptivity 1%/1cm (at λmax) Min 550.0
Visual transition interval from pH 7.3 (pink-yellow) to pH 8.7 (green-blue)
Loss on drying (at 110°C; 1 hr) Max 5.0%




COA Center
 
OR
MSDS/SDS Center