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ChemicalBook--->CAS DataBase List--->140-22-7

140-22-7

140-22-7 Structure

140-22-7 Structure
IdentificationMore
[Name]

1,5-Diphenylcarbazide
[CAS]

140-22-7
[Synonyms]

1,5-DIPHENYLCARBAZIDE
1,5-DIPHENYLCARBOHYDRAZIDE
1,5-DIPHENYLCARBONOHYDRADIDE
1,5-DIPHENYLCARBONOHYDRAZIDE
DIPHENYLCARBAZIDE
S-DIPHENYLCARBAZIDE
S-DIPHENYLCARBOHYDRAZIDE
SYM-DIPHENYLACARBAZIDE
SYM-DIPHENYLCARBAZIDE
TIMTEC-BB SBB008713
1,5-Diphenylcabohydrazide
1,5-diphenyl-carbohydrazid
1,5-Diphenylcarbohydrazine
2,2’-diphenylcarbazide
2,2’-diphenyl-carbonicdihydrazid
2,2’-diphenylcarbonicdihydrazide
2,2’-diphenyl-Carbonicdihydrazide
2,2’-Diphenylcarbonicdihy-drazide
2,2'-Diphenylcarbazide
2,2'-Diphenylcarbonic dihydrazide
[EINECS(EC#)]

205-403-7
[Molecular Formula]

C13H14N4O
[MDL Number]

MFCD00003013
[Molecular Weight]

242.28
[MOL File]

140-22-7.mol
Chemical PropertiesBack Directory
[Appearance]

white crystals or powder
[Melting point ]

170-175 °C(lit.)
[Boiling point ]

385.1°C (rough estimate)
[bulk density]

420kg/m3
[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
[Stability:]

Stable. Light sensitive. Incompatible with strong oxidizing agents.
[Water Solubility ]

Soluble in glacial acetic acid, alcohol and acetone. Slightly soluble in water.
[Sensitive ]

Light Sensitive
[Merck ]

14,3321
[BRN ]

752039
[CAS DataBase Reference]

140-22-7(CAS DataBase Reference)
[NIST Chemistry Reference]

[EPA Substance Registry System]

140-22-7(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

3
[RTECS ]

FF2750000
[F ]

8-10-23
[TSCA ]

Yes
[HazardClass ]

IRRITANT
[HS Code ]

29280090
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Methanol-->Toluene-->Urea-->Iodine-->Phenylhydrazine-->Triphosgene-->Dimethyl carbonate-->Diphenyl carbonate-->Guaiacol carbonate-->Methanone, nitro(2-phenyldiazenyl)-, 2-phenylhydrazone-->Urethane-->1,3-Diphenylurea
[Preparation Products]

Carbonic dihydrazide, bis(diphenylmethylene)- (9CI)-->1-PHENYLSEMICARBAZIDE
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

1,5-Diphenylcarbazide(140-22-7).msds
Hazard InformationBack Directory
[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.
[Definition]

ChEBI: Diphenylcarbazide is a member of phenylhydrazines.
[General Description]

1,5-Diphenylcarbazide is a colorimetric reagent commonly employed in the determination of trace metals.
[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.]
Spectrum DetailBack Directory
[Spectrum Detail]

1,5-Diphenylcarbazide(140-22-7)MS
1,5-Diphenylcarbazide(140-22-7)1HNMR
1,5-Diphenylcarbazide(140-22-7)IR1
1,5-Diphenylcarbazide(140-22-7)IR2
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

sym-Diphenylcarbazide, 99+%(140-22-7)
[Alfa Aesar]

1,5-Diphenylcarbazide, ACS(140-22-7)
[Sigma Aldrich]

140-22-7(sigmaaldrich)
[TCI AMERICA]

1,5-Diphenylcarbonohydrazide,>98.0%(LC)(140-22-7)
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