Dimethyl Yellow (pH Indicator)

  • CAS :
    60-11-7
  • REF :
    25132
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QUANTITY PRICE ENQUIRY
25 gm Rs 140.00
100 gm Rs 420.00

Product Information

  • Formula: C₁₄H₁₅N₃
  • CAS: 60-11-7
  • EC No.: 200-455-7
  • M (Molar Mass): 225.29 g/mol
  • mp (Melting Point): 114-116°C
  • pH Transition Range: 2.9 (red) to 4.0 (yellow)
  • λmax: 410 nm (acidic form)

Chemicals Properties

  • Dye Content: ≥ 85%
  • Appearance: Orange to red crystalline powder
  • pH Transition: Clear change from red to yellow
  • Loss on Drying: ≤ 1.0%
  • Sulfated Ash: ≤ 0.5%
  • Solubility: Soluble in ethanol, methanol; insoluble in water
  • Indicator Performance: Satisfactory for pH determination
  • Heavy Metals (as Pb): ≤ 30 ppm
  • Melting Range: 113-117°C
  • Absorbance (0.1% in ethanol): E₁%₁cm ≥ 200 at 410 nm

Hazard Information

  • Hazard: May be harmful if swallowed. Causes eye irritation.
  • Safety: Wear protective gloves and eye protection.
  • Storage: Store in tightly closed container at room temperature. Protect from light.