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1,5-Diphenylcarbazide

1,5-Diphenylcarbazide Structure
1,5-Diphenylcarbazide
  • CAS No.140-22-7
  • Chemical Name:1,5-Diphenylcarbazide
  • CBNumber:CB9266061
  • Molecular Formula:C13H14N4O
  • Formula Weight:242.28
  • MOL File:140-22-7.mol
1,5-Diphenylcarbazide Property
  • Melting point: :170-175 °C(lit.)
  • Boiling point: :385.1°C (rough estimate)
  • Density  :1.31 g/cm3
  • refractive index  :1.6120 (estimate)
  • storage temp.  :2-8°C
  • solubility  :aqueous acetone: passes test
  • form  :Powder or Flakes
  • pka :9.98±0.43(Predicted)
  • color  :White to cream
  • Odor :Odorless
  • Water Solubility  :Soluble in glacial acetic acid, alcohol and acetone. Slightly soluble in water.
  • Sensitive  :Light Sensitive
  • Merck  :14,3321
  • BRN  :752039
  • Stability: :Stable. Light sensitive. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference :140-22-7(CAS DataBase Reference)
  • EWG's Food Scores :1
  • FDA UNII :1W1XPA8N0P
  • NIST Chemistry Reference :N'',n'''-diphenylcarbonohydrazide(140-22-7)
  • EPA Substance Registry System :Carbonic dihydrazide, 2,2'-diphenyl- (140-22-7)
Safety
  • Hazard Codes  :Xi
  • Risk Statements  :36/37/38
  • Safety Statements  :26-36
  • WGK Germany  :3
  • RTECS  :FF2750000
  • F  :8-10-23
  • TSCA  :Yes
  • HazardClass  :IRRITANT
  • HS Code  :29280090
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H315-H319-H335
  • Precautionary statements P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P280g-P305+P351+P338
1,5-Diphenylcarbazide Price More Price(18)
  • Brand: Sigma-Aldrich
  • Product number: 259225
  • Product name : 1,5-Diphenylcarbazide
  • Purity: ACS reagent
  • Packaging: 25g
  • Price: $103
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 1.03091
  • Product name : 1,5-Diphenylcarbazide
  • Purity: GR for analysis and redox indicator ACS,Reag. Ph Eur
  • Packaging: 25 g
  • Price: $123.02
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 259225
  • Product name : 1,5-Diphenylcarbazide
  • Purity: ACS reagent
  • Packaging: 100g
  • Price: $216
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 1.03091
  • Product name : 1,5-Diphenylcarbazide
  • Purity: GR for analysis and redox indicator ACS,Reag. Ph Eur
  • Packaging: 100 g
  • Price: $413.47
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: D1513
  • Product name : 1,5-Diphenylcarbonohydrazide
  • Purity: >98.0%(HPLC)
  • Packaging: 25g
  • Price: $48
  • Updated: 2021/03/22
  • Buy: Buy

1,5-Diphenylcarbazide Chemical Properties,Usage,Production

  • Chemical Properties white crystals or powder
  • Uses 1,5-Diphenylcarbazideis a carbazide derivative used in the colorimteric determination of chromium as well as in the detection of cadmium, mercury, magnesium and aldehydes.
  • Uses As indicator in titrating Fe; for the colorimetric determination of Cr, detection of Cd, Hg, Mg, aldehydes, emetine.
  • Purification Methods A common impurity is phenyl-semicarbazide which can be removed by chromatography: ~8g in H2O is placed on a column (polyamide 6 powder, Macherey-Nagel-GmbH-Germany, washed several times with MeOH), eluted with H2O/MeOH/AcOH (1:3:0.04) at 7-8 drops/second, then eluted with the same solvent mixture but diluted 5 fold with H2O. The purification is followed by UV light at 280nm. The effluent is evaporated to dryness in vacuo at ~28o. [chromatography, IR & UV: Willems et al. Anal Chim Acta 51 544 1970]. Recrystallise it from EtOH by adding CCl4 to induce crystallisation, or AcOH to give a white crystalline powder which turns pink in air. It is air and light sensitive and should be stored in the dark under N2. [Beilstein 15 H 292, 15 IV 182.]
1,5-Diphenylcarbazide Preparation Products And Raw materials
Raw materials
Preparation Products
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