Dithizone
Revision as of 07:28, 24 July 2013 by (username removed)
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).
Synonyms and Related Terms
diphenylthiocarbazone; phenyldiazenecarbothioic acid 2-phenylhydrazide
Other Properties
Insoluble in water. Soluble in carbon tetrachloride, chloroform Slightly soluble in alcohols.
| Composition | C13H12N4S |
|---|---|
| CAS | 60-10-6 |
| Melting Point | 168 (dec) |
| Molecular Weight | mol. wt. = 256.32 |
Hazards and Safety
Contact may cause irritation.
Fisher Scientific: MSDS
Additional Information
N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology Archetype Publications, London, 2000, p.96.
Authority
- 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