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ZINCON

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ZINCON Basic information

Product Name:
ZINCON
Synonyms:
  • O-[2-[ALPHA-(2-HYDROXY-5-SULFOPHENYLAZO)-BENZYLIDENE]-HYDRAZINO]-BENZOIC ACID,MONOSODIUM SOLT
  • O-[2-[ALPHA-(2-HYDROXY-5-SULFOPHENYLAZO)BENZYLIDENE]HYDRAZINO]BENZOIC ACID SODIUM SALT
  • 2-[[.alpha.-(2-Hydroxy-5-sulfophenylazo)benzylidene]hydrazino]benzoicacid
  • 2-[1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano]-benzoicaci
  • 2-[1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano]-Benzoicacid
  • Zincon sodium salt hydrate
  • ZINCON
  • 2-CARBOXY-2'-HYDROXY-5'-SULFOFORMAZYLBENZENE
CAS:
135-52-4
MF:
C20H16N4O6S
MW:
440.43
EINECS:
205-197-9
Product Categories:
  • Indicators
  • Titration
  • Metal Titration IndicatorsSpectroscopy
  • UV/Vis Reagents
  • UV/Visible (UV/VIS) Spectroscopy
Mol File:
135-52-4.mol
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ZINCON Chemical Properties

Melting point:
203°C (dec.)
Density 
1.48±0.1 g/cm3(Predicted)
pka
pK2:4;pK3:7.85;pK4:15 (25°C)
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
135-52-4(CAS DataBase Reference)
EPA Substance Registry System
Benzoic acid, 2-[[[(2-hydroxy-5-sulfophenyl)azo]phenylmethylene]hydrazino]- (135-52-4)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39-36
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ZINCON Usage And Synthesis

Chemical Properties

purple powder

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.]

ZINCON Preparation Products And Raw materials

Preparation Products

ZINCONSupplier

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