α-Naphtholphthalein, pure indicator
Supplier: Thermo Fisher Scientific
Certificates
About this item
:596-01-0
:
:C₂₈H₁₈O₄
:MFCD00036202
:418.45 g/mol
:240…250 °C
:Ambient
:209-875-5
Specification Test Results
- Appearance:Beige to pink to brown Powder
- Infrared spectrum:Conforms
- Loss on drying:≤5 % (110°C, 1 h)
- UV Lambda max:648 to 654 nm (in 0.1N NaOH)
- Specific absorbance A (1%/1cm):≥550 (at lamda max)
- Visual transition interval:from pH 7.3 (pink-yellow) to pH 8.7 (green-blue)
Specification Test Results
Product Information
- Catalog #Supplier #Pack typePkAvailabilityPrice
- ACRO190120010190120010Glass bottle1 g1 * 1 g£98.30
- ACRO190120050190120050Glass bottle5 g1 * 5 g£294.00
- ACRO190120250190120250Glass bottle25 g1 * 25 g£1,020.00