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43820

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:
748838
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21
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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.)

functional group

amine

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.[1] It is widely used for the liquid-liquid and solid phase extraction of various metals, since it forms stable complexes with the metals.[2]

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[3][4]; Reagent for the extraction and flame atomic absorption spectroscopic determination of metals[5][6], Reagent for the spectrophotometric detection of heavy metals[7][8]

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

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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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 -
G. Iwantscheff
Das Dithizon und seine Anwendung in der Mikro- und Spurenanalyse null
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)

Questions

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    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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