Methylene Blue 95% AR

  • CAS :
    61-73-4
  • REF :
    25789
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QUANTITY PRICE ENQUIRY
25 gm Rs 470.00
100 gm Rs 1850.00
500 gm Rs 8280.00

Product Information

  • Formula: C₁₆H₁₈ClN₃S·xH₂O (anhydrous basis)
  • CAS: 61-73-4 (anhydrous)
  • EC No.: 200-515-2
  • M: 319.85 g/mol (anhydrous)
  • D: Not applicable
  • mp: 100-110°C (decomposes)
  • bp: Not applicable
  • Optical Rotation: Not applicable

Chemicals Properties

  • Assay (Iodometric Titration): ≥ 95.0 % (on anhydrous basis).
  • Appearance: Dark green crystalline powder with bronze luster.
  • Solubility (1% in water): Complete, deep blue solution.
  • pH (1% solution): 3.0 – 4.5.
  • Absorbance (0.01% solution, 1 cm cell):
  • Ratio A₆₆₅/A₆₁₂: 1.15 – 1.30.
  • Loss on Drying: ≤ 18.0 % (typically 10-15% as trihydrate).
  • Residue on Ignition: ≤ 0.5 %.
  • Zinc (Zn): ≤ 50 ppm.
  • Insoluble Matter: ≤ 0.1 %.

Hazard Information

  • Hazard: Harmful if swallowed. Causes eye irritation.
  • Safety: For laboratory use only. Avoid inhalation of dust. Wear protective gloves/eye protection.
  • Storage: Store in a cool, dry place. Keep container tightly closed. Protect from light.