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26049 Sigma-Aldrich

Chlorophosphonazo III

for spectrophotometric det. of alkaline earth metals

Synonym: Bis(4-chloro-2-phosphonobenzolazo)chromotropic acid

  • CAS Number 1914-99-4

  • Empirical Formula (Hill Notation) C22H16Cl2N4O14P2S2

  • Molecular Weight 757.36

  •  Beilstein Registry Number 2934871

  •  EC Number 217-628-8

  •  MDL number MFCD00042698

  •  PubChem Substance ID 329752849

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Spectroscopy, UV/Vis Reagents, UV/Visible (UV/VIS) Spectroscopy More...
InChI Key   LMBABJNSZGKTBA-NBHCHVEOSA-N
quality   for spectrophotometric det. of alkaline earth metals

Description

Other Notes

Reagent for the spectrophotometric determination of alkaline earth metals

Same product — same quality — now Sigma-Aldrich brand

Packaging

1 g in glass bottle

Bottomless glass bottle. Contents are inside inserted fused cone.

Application

Chlorophosphonazo III was used as a chromogenic agent along with PVC, during the determination of calcium via a disposable optical sensor.

General description

Chlorophosphonazo III is a highly sensitive reagent and can be used for the spectrophotometric determination of zirconium, titanium, thorium and scandium. It also finds application as an extractant, along with 1-butanol as solvent, for determination of micromolar concentrations of Nd(III), Th(IV) and U(VI) in brine. Above all that, it has two long wavelength maxima, one at 620 nm and one at 680 nm.

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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles
Peer-Reviewed Papers
15

References

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