CAS NO:1914-99-4; 2,7-naphthalenedisulfonic acid, 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-di

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CAS:

1914-99-4

分子式:

C22H16Cl2N4O14P2S2

分子量:

757.36

英文名称:

2,7-naphthalenedisulfonic acid, 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-di

hydroxy-

chlorophosphonazo iii

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

用途:

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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