Eriochrome Black T (Solochrome black T)

  • CAS :
    1787-61-7
  • REF :
    25191
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QUANTITY PRICE ENQUIRY
25 gm Rs 410.00
100 gm Rs 1100.00

Product Information

  • Formula: C₂₀H₁₂N₃NaO₇S
  • CAS: 1787-61-7
  • EC No.: 217-250-6
  • M (Molar Mass): 461.38 g/mol
  • Color: Black powder
  • pH Transition: Wine red to blue at pH 10
  • Use: Indicator for EDTA titrations of calcium, magnesium

Chemicals Properties

  • Dye Content: ≥ 85%
  • Appearance: Black powder
  • Indicator Performance: Sharp color change at pH 10
  • Loss on Drying: ≤ 5.0%
  • Solubility in Water: ≥ 95% soluble
  • Ash Content: ≤ 15%
  • Heavy Metals (as Pb): ≤ 50 ppm
  • Sensitivity: Detects 0.01 mmol/L Ca²⁺ or Mg²⁺
  • pH Range: 9.5-10.5 for optimal performance
  • Stability: Stable as dry powder

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.