Published 1980 | Version v1
Journal article Metadata-only

Thermodynamic and kinetic characterization of a zirconium chelate

Creators

Description

The chemical preparation, composition and characteristics of a zirconium complex with hemateine was studied. Hematein is the common name of an organic compound containing hydroxy-aromatic and hydroxyquinonic groups. The stability constant of this complex was determined spectrophotometrically. Other thermodynamic parameters for the complex formation were also determined; the effect of temperature on these parameters was examined. Reaction kinetics was investigated, as well as the charge of reacting species for the formation of the activated complex. (C.L.B.)

Abstract (Portuguese)

Estudou-se a preparacao, composicao e caracteristicas quimicas do complexo de zirconio com um composto organico constituido por grupos hidroxiaromaticos e hidroxiquinonicos, conhecido vulgarmente como hemateina. Determinou-se a constante de estabilidade do complexo por espectrofotometria. A partir da constante termodinamica de estabilidade, foram obtidos outros parametros termodinamicos padroes de formacao do complexo. Um estudo cinetico da reacao de formacao foi tambem realizado, assim como uma investigacao da carga das especies reatantes para formacao do complexo ativado. (C.L.B.)

Additional details

Additional titles

Original title (Portuguese)
Caracterizacao termodinamica e cinetica de um quelato de zirconio

Publishing Information

Journal Title
An. Assoc. Bras. Quim.
Journal Volume
31
Journal Issue
3/4
Series
An. Assoc. Bras. Quim.
Journal Page Range
275-279
ISSN
0365-0073

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
16023589
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACTIVATION ENERGY; CHEMICAL PREPARATION; DIAGRAMS; STABILITY; THERMODYNAMIC PROPERTIES; ZIRCONIUM COMPLEXES
Descriptors DEC
COMPLEXES; ENERGY; INFORMATION; PHYSICAL PROPERTIES; SYNTHESIS; TRANSITION ELEMENT COMPLEXES