| Identification | Back Directory | [Name]
ZINCON SODIUM SALT | [CAS]
56484-13-0 | [Synonyms]
Zincon sodium salt, GR
2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid sodium salt, 2-Carboxy-2μ-hydroxy-5μ-sulfoformazyl-benzene sodium salt | [EINECS(EC#)]
629-599-2 | [Molecular Formula]
C20H15N4NaO6S | [MDL Number]
MFCD00064385 | [MOL File]
56484-13-0.mol | [Molecular Weight]
462.41 |
| Chemical Properties | Back Directory | [Melting point ]
250 °C | [storage temp. ]
room temp | [solubility ]
0.1 M NaOH: 1mg/mL | [form ]
powder | [ε(extinction coefficient)]
≥10000 at 489-495nm in methanol | [λmax]
523 nm | [BRN ]
728403 |
| Hazard Information | Back Directory | [Uses]
Zincon sodium salt has been used to locate zinc in plant tissues by light microscopy. | [Purification Methods]
Zincon solution is prepared by dissolving 0.13g of the powder in aqueous N NaOH (2mL diluted to 100mL with H2O). This gives a deep red colour which is stable for one week. It is a good reagent for zinc ions but also forms stable complexes with transition metal ions. [UV-VIS: Bush & Yoe Anal Chem 26 1345 1954, Hunter & Roberts J Chem Soc 820 1941, Platte & Marcy Anal Chem 31 1226 1959] The free acid (see above) has been recrystallised from dilute H2SO4. [Fichter & Scheiss Chem Ber 33 751 1900, Beilstein 16 IV 421.] |
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