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96440

Supelco

Zincon monosodium salt

for spectrophotometric det. of Cu, Zn

Synonym(s):

2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt, 2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid monosodium salt

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About This Item

Empirical Formula (Hill Notation):
C20H15N4NaO6S
CAS Number:
Molecular Weight:
462.41
Beilstein:
728403
EC Number:
MDL number:
UNSPSC Code:
12000000
PubChem Substance ID:
NACRES:
NA.21

form

solid

Quality Level

quality

for spectrophotometric det. of Cu, Zn

technique(s)

UV/Vis spectroscopy: suitable
titration: suitable

mp

250-260 °C (dec.)

SMILES string

[Na+].OC(=O)c1ccccc1N/N=C(\N=N\c2cc(ccc2O)S([O-])(=O)=O)c3ccccc3

InChI

1S/C20H16N4O6S.Na/c25-18-11-10-14(31(28,29)30)12-17(18)22-24-19(13-6-2-1-3-7-13)23-21-16-9-5-4-8-15(16)20(26)27;/h1-12,21,25H,(H,26,27)(H,28,29,30);/q;+1/p-1/b23-19-,24-22+;

InChI key

DVHNWVSFUULGKM-XJRAADKASA-M

General description

Molar absorption coefficients and stability constants of Zincon metal complexes for determination of metal ions and bioinorganic applications. A. Kocyla, A. Pomorski, A. Krezel, Journal of Inorganic Biochemistry 176, 53-65, (2017).

Application

A colorimetric indicator for Zn, Cu and Hg

Other Notes

Reagent for the spectrophotometric determination of zinc; Simultaneous determination of zinc and copper; Used in automated flow injection analysis of zinc

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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J.A. Platte et al.
Analytical Chemistry, 31, 1226-1226 (1959)
R.M. Rush et al.
Analytical Chemistry, 26, 1345-1345 (1954)
Anna Kocyła et al.
Journal of inorganic biochemistry, 176, 53-65 (2017-09-02)
Zincon (ZI) is one of the most common chromophoric chelating probes for the determination of Zn2+ and Cu2+ ions. It is also known to bind other metal ions. However, literature data on its binding properties and molar absorption coefficients are
Automated flow injection spectrophotometric determination of zinc using zincon: applications to analysis of waters, alloys and insulin formulations.
M A Koupparis et al.
The Analyst, 111(11), 1311-1315 (1986-11-01)
J.T. McCall et al.
Analytical Chemistry, 30, 1345-1345 (1958)

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