ZINCON
- CAS NO.：135-52-4
- Empirical Formula: C20H16N4O6S
- Molecular Weight: 440.43
- MDL number: MFCD00007507
- EINECS: 205-197-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-08-28 09:47:29
What is ZINCON?
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.]
Properties of ZINCON
| 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) |
Safety information for ZINCON
Computed Descriptors for ZINCON
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