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Sigma-Aldrich

Dithizone

ACS reagent, for spectrophotometric det. of Cd, Cu, Hg, Pb, Zn, ≥98.0% (TLC)

Synonym(s):

Diphenylthiocarbazone

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About This Item

Linear Formula:
C6H5NHNHCSN=NC6H5
CAS Number:
Molecular Weight:
256.33
Beilstein/REAXYS Number:
748838
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

assay

≥98.0% (TLC)

form

powder

quality

for spectrophotometric det. of Cd, Cu, Hg, Pb, Zn

technique(s)

UV/Vis spectroscopy: suitable

mp

168 °C (dec.) (lit.)

SMILES string

S=C(NNc1ccccc1)\N=N\c2ccccc2

InChI

1S/C13H12N4S/c18-13(16-14-11-7-3-1-4-8-11)17-15-12-9-5-2-6-10-12/h1-10,14H,(H,16,18)/b17-15+

InChI key

UOFGSWVZMUXXIY-BMRADRMJSA-N

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General description

Dithizone (Diphenylthiocarbazone) is used as chelating agent for zinc. It is widely used for the liquid-liquid and solid phase extraction of various metals, since it forms stable complexes with the metals.

Application

  • Dithizone modified silver electrode for the determination of metal ions in aqueous solution: This study discusses a dithizone-modified electrode used for the electrochemical determination of various metal ions, highlighting its applications in environmental monitoring and industrial process control (Othman et al., 2016). Source.
  • Eco-friendly immobilization of dithizone on coal bottom ash for the adsorption of lead (II) ion from water: This study explores the use of dithizone-immobilized coal ash for the efficient removal of lead from water, demonstrating a cost-effective method for treating contaminated water (Huda et al., 2021). Source.
  • Colorimetric Sensing of Pb2+ Ion by Using Ag Nanoparticles in the Presence of Dithizone: The article details the development of a colorimetric sensor for lead ions, which uses silver nanoparticles and dithizone, providing a rapid and sensitive method to detect heavy metal contamination in environments (Roto et al., 2019). Source.
  • Dithizone-etched CdTe nanoparticles-based fluorescence sensor for the off–on detection of cadmium ion in aqueous media: This research presents a fluorescent sensor based on dithizone-etched CdTe nanoparticles for detecting cadmium ions, offering applications in environmental monitoring and safety assessments (Li et al., 2017). Source.

Other Notes

Reagent for the extraction and separation of heavy metals; Reagent for the extraction and flame atomic absorption spectroscopic determination of metals, Reagent for the spectrophotometric detection of heavy metals

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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K.L. Cheng et al. et al.
Handbook of Organic Analytical Reagents null
H. Armannson
Analytica Chimica Acta, 88, 89-89 (1977)
Analytica Chimica Acta, 110, 21-21 (1979)
G. Iwantscheff
Das Dithizon und seine Anwendung in der Mikro- und Spurenanalyse null
Humaira Khan et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 21(5), 507-512 (2005-05-26)
A very simple, ultra-sensitive and fairly selective non-extractive spectrophotmetric method is presented for the rapid determination of mercury(II) at ultra-trace level using 1,5-diphenylthiocarbazone (dithizone) as a new micellar spectrophotometric reagent (lambdamax = 490 nm) in a slightly acidic (0.07 -

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