Zincon Monosodium Salt is a sulfonated azo dye and metallochromic indicator used as a synthetic organic reagent in metal-ion analysis. Its monosodium sulfonate group gives good compatibility with aqueous systems, while its chemical structure contains donor groups capable of coordinating with divalent and selected transition-metal ions, particularly Zn²⁺. Zincon Monosodium Salt acts as a chelating chromogenic reagent that forms colored complexes with zinc that can be evaluated by spectrophotometric methods. Its analytical response can be affected by factors such as pH, reagent concentration and the presence of competing metal ions. These properties make it useful for studying zinc–dye complexation and for developing sensitive and selective methods for zinc detection.
CAS No.: 62625-22-3
Synonyms: 2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid monosodium salt, 2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt, 2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt.
| Physical Properties | |
| Chemical formula | C20H15N4O6S.Na |
| IUPAC Name | sodium (3Z)-3-{[(E)-{2-(2-carboxyphenyl)hydrazin-1- ylmethylidene}amino]imino}-4-oxocyclohexa-1,5-diene-1-sulfonate |
| Molecular weight | 462.41 g/mol |
| Solubility | Soluble in water (slightly at 20° C), alcohol (slightly), and aqueous alkali. Insoluble in most organic solvents. |
| Density | 1.5±0.1 g/cm3 |
| Appearance | Dark violet powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | Dark violet |
| Physical State | Solid |
| Melting Point | 250-260 °C |
| Odor | Odorless |
| Pictograms : |  |
| Hazard Statements : | H315: Causes skin irritation. H319: Causes serious eye irritation. |
| Precautionary Statements: | P302+P352: IF ON SKIN: Wash with plenty of water. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
Zincon Monosodium Salt is a sulfonated azo dye and metallochromic indicator used as a synthetic organic reagent in metal-ion analysis. Its monosodium sulfonate group gives good compatibility with aqueous systems, while its chemical structure contains donor groups capable of coordinating with divalent and selected transition-metal ions, particularly Zn²⁺. Zincon Monosodium Salt acts as a chelating chromogenic reagent that forms colored complexes with zinc that can be evaluated by spectrophotometric methods. Its analytical response can be affected by factors such as pH, reagent concentration and the presence of competing metal ions. These properties make it useful for studying zinc–dye complexation and for developing sensitive and selective methods for zinc detection.
CAS No.: 62625-22-3
Synonyms: 2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid monosodium salt, 2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt, 2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt.
| Physical Properties | |
| Chemical formula | C20H15N4O6S.Na |
| IUPAC Name | sodium (3Z)-3-{[(E)-{2-(2-carboxyphenyl)hydrazin-1- ylmethylidene}amino]imino}-4-oxocyclohexa-1,5-diene-1-sulfonate |
| Molecular weight | 462.41 g/mol |
| Solubility | Soluble in water (slightly at 20° C), alcohol (slightly), and aqueous alkali. Insoluble in most organic solvents. |
| Density | 1.5±0.1 g/cm3 |
| Appearance | Dark violet powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | Dark violet |
| Physical State | Solid |
| Melting Point | 250-260 °C |
| Odor | Odorless |
| Pictograms : | |
| Hazard Statements : | H315: Causes skin irritation. H319: Causes serious eye irritation. |
| Precautionary Statements: | P302+P352: IF ON SKIN: Wash with plenty of water. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
Zincon Monosodium Salt is a sulfonated azo dye primarily used as a colorimetric and spectrophotometric reagent for the detection and quantification of metal ions particularly zinc. It also functions as a metal indicator in EDTA complexometric titrations, especially for the determination of zinc.
Zincon Monosodium Salt is a chromogenic metal indicator and chelating analytical reagent used to monitor metal-ion interactions through measurable optical changes.
