425 research outputs found
DERIVATOGRAPHIC STUDY OF THERMAL DECOl\'IPOSITION OF ELECTRICAL INSULATING MATERIALS AND INSULATORS
ÜBER DIOXIMINKOMPLEXE DER ÜBERGANGSMETALLE. LXXX. KATALYTISCHE POLAROGRAPHISCHE REDUKTION VON HYDROXYLAMIN IN ANWESENHEIT VON EISEN(II)-DIOXIMINKOMPLEXEN
The stability constants of the iron(II)-nyoximine chelates: Fe(Nyox. H)* and Fe(Nyox. H)2
in aqueous NaClO4 -Britton-Robinson buffer solutions have been determined polarographi-
cally. In the Fe(II)-nyoxime system appears a catalytic wave in the presence of hydroxylamine,
with a half wave potential of -0.90 V (vs. SCE), suitable for the quantitative polarographic
determination of hydroxylamine, also in the presence of hydrazine
ON THE DIOXIMINE COMPLEXES OF TRANSITION METALS. PART XCIV. NEW RHODIUM(III) COMPLEXES WITH α-SUBSTITUTED ALIPHATIC AND ALICYCLIC OXIMES
Some chelating agents were obtained by condensation of the α-keto-oximes diacetyl-monoxime, methyl-isopropyl-2,3-dione-monoxime (2) and 1,2,3-cyclohexane trione dioxime (1,3) with semicarbazide and thiosemicarbazide. The formation of rhodium(III) chelates with these reagents was studied spectrophotometrically in a wide pH-range using
the continuous variation method. Some derivatives were proposed for the analytical determination of this metal
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