| Diphenyl thiocarbazone;Dithizone;Diazenecarbothioic acid, phenyl-, 2-phenylhydrazide;(phenylazo)thio-formic aci 2-phenylhydrazide;(phenylazo)thioformic acid, 2-phenylhydrazide;1,5-diphenyl-3-formazanthio;diphenylthio-carbazon;phenyl-diazenecarbothioic aci 2-phenylhydrazide;diphenylthiocarbazone;dithizon;1-phenyl-4-(phenylimino)-3-thio-semic
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CAS : 60-10-6
formula : C13H12N4S
molecular weight : 256.33
Chinese name : Thiocarbazonate two phenyl hydrazone; Lead reagents; Dithizone; 2-phenyl-phenyl-2 hydrazide triazene Thio carboxylic acid; thio Kabeisong diphenyl; 1,5-diphenyl sulfur; Sa fight hydrazone
English title : Diphenyl thiocarbazone; Dithizone; Diazenecarbothioic acid, phenyl-, 2-phenylhydrazide; (phenylazo) thio - formic Aci 2-phenylhydrazide; (phenylazo) thioformic acid, 2-phenylhydrazide; 1,5 - diphenyl-3-formazanthio; diphenylthio - carbazon; phenyl-diazenecarbothioic Aci 2-phenylhydrazide; diphenylthiocarbazone; dithizon; 1-phenyl-4 - (phenylimino) - 3-thio - semicarbazid; phenylazo - thioformic Aci phenylhydrazide
traits Description : blue-black crystalline powder. Melting point 165-169 ° C (decomposition). Soluble in chloroform; Carbon tetrachloride, slightly soluble in alcohol, do not dissolve in water.
production methods : prepared by the following steps.
1. 2 Phenylhydrazine Dithiocarbamate Phenylhydrazine Preparation of salt. Will 13G Phenylhydrazine soluble Scanning ether, 71/92 5.2ml carbon disulfide. Formation of the white precipitate filtered, washed with ether, around 15g.
2. Diphenyl Thiocarbohydrazide Preparation. These fragments will be placed beaker, in the 96-98 ° C water bath on the heating, melting materials emit hydrogen sulfide after the switch to light yellow in the jelly. If ammonia release, the outflow hot bath, water cooling. But then cold. But then cold, by adding 15 ml of water ethanol, since out of ice bath, stirring slightly under heat, then become amorphous jelly products, leaching, ethanol washing, approximately straw.
3. Dithizone Preparation. These findings will diphenyl two thiosemicarbazide added caustic potash solution (6g Scanning soluble potassium hydroxide anhydrous methanol), in the boiling water bath for 5 minutes on the back, took the ice bath cooling. Filtration and the filtrate with sulfuric acid test paper to Congo red color, a dark blue precipitate precipitation. Leaching of sediments reuse caustic potash solution; Sulfuric acid treatment again, after washing leaching to exist without sulfate. At 40 ° C drying, in Dithizone about 3g.
purposes : goods is the determination of the complex along indicator, and for the determination of cobalt, copper, mercury, zinc and silver.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data". |
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| More Detailed Data: |
1) Dithizone;Phenyldiazinecarbothioic acid 2-phenylhydrazide;(Phenylazo)thioformic acid 2-phenylhydrazzide;Diphenylthiocarbazone
2) dithizone;diphenylthiocarbazone
3) dithizone;diphenylthiocarbazone
4) dithizone;diphenylthiocarbazone
5) Two sulfur Kabbah phenyl hydrazone
6) dithizone method
7) reagent
8) reagent
9) phenyl sulfide;1,1'-thiobis(benzene);1,1'-thiobis-benzen;diphenyl sulfide;diphenyl sulphide;diphenyl thioether
10) Phenyl sulfide;1,1'-Thiobis[benzene];Diphenyl sulfide
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Some description was translated by software and the data is only as a reference. |
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