Murexide

Murexide

Basic Info:

• Product Name: Murexide
• Chemical Name: Ammonium Purpurate
• CAS Number: 3051-09-0
• Molecular Formula: C₈H₈N₆O₆
• Molar Mass: 284.18 g/mol
• Product Code: M812960
• Pack Size: 100 g
• Grade: Laboratory / Analytical Grade
• Appearance: Purple to reddish-brown crystalline powder
• Odor: Odorless
• Solubility: Slightly soluble in water; more soluble in alkaline solutions
• pH Sensitivity: Exhibits color change depending on pH and metal ion presence
• Stability: Stable under normal conditions; sensitive to light and strong acids
• Reactivity: Forms colored complexes with metal ions such as calcium, nickel, cobalt, and copper.

  Product Description

  Murexide (ammonium purpurate) is a high-purity metallochromic indicator widely used in analytical chemistry, particularly in complexometric titrations involving EDTA. It is especially effective for the determination of calcium and other metal ions due to its distinct and sharp color changes.

  Common Applications Include:

  • Indicator for calcium determination in EDTA titrations

  • Detection of metal ions (Ca²⁺, Ni²⁺, Co²⁺, Cu²⁺)

  • Analytical laboratory testing

  • Educational and research applications

  Murexide should be stored in a cool, dry place, protected from light and moisture. Personal protective equipment such as gloves and goggles is recommended during handling to prevent staining and contact.