1-Naphtholbenzein (pH indicator)

  • CAS :
    145-50-6
  • REF :
    25850
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QUANTITY PRICE ENQUIRY
5 gm Rs 900.00
25 gm Rs 3680.00

Product Information

  • Formula: C₂₇H₂₄O₃
  • CAS: 145-50-6
  • EC No.: 205-658-9
  • M (Molar Mass): 396.48 g/mol
  • D (Density): ~1.0 g/cm³ (approx.)
  • mp (Melting Point): 125-127 °C
  • bp (Boiling Point): Not applicable
  • pH Range: 8.0 (yellow) - 10.0 (blue)

Chemicals Properties

  • Assay (Colorimetric): Suitable for use as pH indicator.
  • Appearance: Reddish-brown powder.
  • Identification (Color Change): Passes test (yellow in acid, blue in alkali).
  • Solubility (in Ethanol): Passes test.
  • Loss on Drying: ≤ 0.5 %
  • Sensitivity Test (pH transition): Complies.

Hazard Information

  • Hazard: May be harmful if swallowed.
  • Safety: Avoid dust formation.
  • Storage: Store in a cool, dry place, tightly closed.