Difference between revisions of "Dithizone"

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Blue-black crystalline powder used as a colorimetric reagent for the detction of [[zinc]] in metal objects, corrosion products, and [[pigment|pigments]] (Odegaard et al 2000). Zinc reacts with dithizone to produce a pink-red residue. Dithizone also reacts with [[silver]] (violet), [[copper]] (dark yellow), [[lead]] (dark red), and [[mercury]] (orange).
 
Blue-black crystalline powder used as a colorimetric reagent for the detction of [[zinc]] in metal objects, corrosion products, and [[pigment|pigments]] (Odegaard et al 2000). Zinc reacts with dithizone to produce a pink-red residue. Dithizone also reacts with [[silver]] (violet), [[copper]] (dark yellow), [[lead]] (dark red), and [[mercury]] (orange).
 
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[[[SliderGallery rightalign|dithizone.jpg~Chemical structure]]]
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
diphenylthiocarbazone; phenyldiazenecarbothioic acid 2-phenylhydrazide
 
diphenylthiocarbazone; phenyldiazenecarbothioic acid 2-phenylhydrazide
  
[[[SliderGallery rightalign|dithizone.jpg~Chemical structure]]]
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== Risks ==
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* Contact may cause irritation. 
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* Fisher Scientific: [https://fscimage.fishersci.com/msds/96058.htm MSDS]
  
== Other Properties ==
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==Physical and Chemical Properties==
  
 
Insoluble in water.  Soluble in carbon tetrachloride, chloroform  Slightly soluble in alcohols.
 
Insoluble in water.  Soluble in carbon tetrachloride, chloroform  Slightly soluble in alcohols.
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! scope="row"| Melting Point
 
! scope="row"| Melting Point
| 168 (dec)
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| 168 C (dec)
 
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! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|}
 
|}
  
== Hazards and Safety ==
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==Resources and Citations==
 
 
Contact may cause irritation. 
 
 
 
Fisher Scientific: [https://fscimage.fishersci.com/msds/96058.htm MSDS]
 
 
 
== Additional Information ==
 
 
 
N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'' Archetype Publications, London, 2000, p.96.
 
 
 
== Sources Checked for Data in Record ==
 
  
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry #3395
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry #3395
  
* N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'', Archetype Publications, London, 2000
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* N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'', Archetype Publications, London, 2000, p.96.
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 14:21, 22 July 2022

Description

Blue-black crystalline powder used as a colorimetric reagent for the detction of Zinc in metal objects, corrosion products, and pigments (Odegaard et al 2000). Zinc reacts with dithizone to produce a pink-red residue. Dithizone also reacts with Silver (violet), Copper (dark yellow), Lead (dark red), and Mercury (orange).

Chemical structure

Dithizone.jpg

Synonyms and Related Terms

diphenylthiocarbazone; phenyldiazenecarbothioic acid 2-phenylhydrazide

Risks

  • Contact may cause irritation.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Insoluble in water. Soluble in carbon tetrachloride, chloroform Slightly soluble in alcohols.

Composition C13H12N4S
CAS 60-10-6
Melting Point 168 C (dec)
Molecular Weight mol. wt. = 256.32

Resources and Citations

  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry #3395
  • N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology, Archetype Publications, London, 2000, p.96.