Diantipyrylmethane

- Overview
  - Diantipyrylmethane is a colorimetric reagent for Ti detection, and is also used as a gravimetric and solvent extraction reagent for various kinds of metal ions. This reagent is readily soluble in mineral acids and organic solvents, and slightly soluble in benzene (1.7%) and carbon tetrachloride (0.28%). Diantipyrylmethane forms a yellow complex with Ti in 0.5-4.0 M HCl solution (λmax=385-390 nm, ε=15,000). The resulting Ti complex can be extracted by organic solvents in the presence of I-, SCN-, tartaric acid, or pyrocatechol. The detection range is 0.2-3.0 ppm. Diantipyrylmethane also makes a brown water-soluble complex with Fe in a weak acidic solution.
    
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- Properties
  - Categories
    
    Ion Analysis
    
    Alternative Name
    
    Di(4-antipyryl)methane, monohydrate
    
    CAS Number
    
    1251-85-0
    
    Molecular Formula
    
    C23H24N4O2, H2O
    
    Molecular Weight
    
    406.48
    
    Appearance
    
    White crystalline powder
    
    Purity
    
    ≥99.0% (HPLC)
    
    Storage
    
    ambient temperature
    
    Shipping
    
    ambient temperature
    
    * For research use only
- Applications
  - Application Description
    
    Solvent extraction, colorimetric detection: Fe (λmax=450 nm, ε=5,400), Mo, Ti, U
    
    Gravimetric detection: Be, Ca, Cd, Co, Cu, Hg, Ir, Os, Pb, Sr, Tl, Zn
- Reference
  - 1) C. H. Chung, Simultaneous Determination of Iron and Titanium in Silicate Rocks by Using Diantipyrinylmethane with Dual-wavelength Spectrophotometry. Anal Chim Acta. 1983;154:259-265.
    
    2) N. Uehara, et al., Determination of Titanium(III) in River Water by Ion-pair Reversed-phase High-performance Liquid Chromatography with 4,4 EDiantipyrylmethane. Analyst. 1991;116:27-29.

MSDS

Diantipyrylmethane

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