o-Cresolphthalein (pH indicator)

  • CAS :
    596-27-0
  • REF :
    24975
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QUANTITY PRICE ENQUIRY
5 gm Rs 250.0
25 gm Rs 687.5

Product Information

Formula: C₂₂H₁₈O₄ CAS: 596-27-0 EC No.: 209-882-5 M (Molar Mass): 346.38 g/mol mp (Melting Point): 218-223°C pH Transition Range: 8.2 (colorless) to 9.8 (red) λmax: 570 nm (basic form)

Chemicals Properties

Dye Content: ≥ 85% Appearance: White to pale yellow crystalline powder pH Transition: Clear at pH 8.2, red at pH 9.8 Loss on Drying: ≤ 1.0% Sulfated Ash: ≤ 0.5% Solubility: Soluble in ethanol, methanol; insoluble in water Indicator Test: Satisfactory (clear color change in specified pH range) Heavy Metals (as Pb): ≤ 20 ppm Melting Range: 220-225°C

Hazard Information

Hazard: May be harmful if swallowed. Causes eye irritation. Safety: Avoid breathing dust. Use with adequate ventilation. Storage: Store in tightly closed container at room temperature. Protect from light.