diphenylcarbazide

diphenylcarbazide

[dī¦fen·əl′kär·bə‚zīd]
(organic chemistry)
CO(NHNHC6H5)2 A white powder, melting point 170°C; used as an indicator, pink for alkalies, colorless for acids.
References in periodicals archive ?
The concentration of Cr(VI) was determined using diphenylcarbazide colorimetric method at a wavelength of 540nm.
Cr(VI) was analyzed spectrophotometrically using 1,5 diphenylcarbazide method [27] at [lambda] max 540 nm (Varian Cary 50 Conc UV-visible spectrophotometer).
Blocks were squeezed in a hydraulic press to express free treating solution from the wood void spaces, and the expressed solution was analyzed for its hexavalent chromium content using the diphenylcarbazide colorimetric method (ASTM 1996) and for its total chromium, copper, and arsenic content using inductively coupled plasma-atomic emission spectroscopy (ICP-AES) (AWPA 2001a).
Diphenylcarbazide (DPC) is one such chelating agent, which gives a highly sensitive and selective colour reaction towards chromium (VI) in acidic medium.
5 mL diphenylcarbazide reagent was then added to each solution after which they became slightly colored.