Published 1989 | Version v1
Journal article Metadata-only

Modified method for zirconium or hafnium gravimetric determination with glycolic acid derivatives

Creators

  • 1. UNESP, Araraquara, SP (Brazil). Dept. de Quimica Analitica
  • 2. Minas Gerais Univ., Belo Horizonte, MG (Brazil). Dept. de Quimica

Description

The conditions for gravimetric determination of zirconium or hafnium by glicolic acid derivatives were studied by thermogravimetric analysis. The method utilized shown that after precipitation, washing and drying of precipitates at 1500C, the resulting solid was weighed in the form of [M{RCH(OH)COO}4] (M = Zr,Hf;R = C6H5, β-C10H7,p-BrC6H4). (author)

Abstract (Portuguese)

Foram estudadas as condicoes para a determinacao gravimetrica de zirzonio ou de hafnio por acidos-α-hidroxicarboxilicos. Por termogravimetria estabeleceu-se que apos precipitacao, lavagem e secagem dos precipitados a 1500C, o solido obtido pode ser pesado diretamente na forma de [M{RCH(OH)COO}4] (M = Zr,Hf;R = C6H5,β-C10H7,pBrC6H4). (autor)

Additional details

Additional titles

Original title (Portuguese)
Metodo simplicado para determinacao gravimetrica de zirconio ou de hafnio com acidos α-hidroxicarboxilicos

Publishing Information

Journal Title
Ecletica Quimica
Journal Volume
14
Series
Eclet. Quim.
Journal Page Range
101-106
ISSN
0100-4670
CODEN
ECQUD

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
22002096
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
GLYCOLIC ACID; HAFNIUM; THERMAL GRAVIMETRIC ANALYSIS; ZIRCONIUM
Descriptors DEC
CARBOXYLIC ACIDS; CHEMICAL ANALYSIS; DESTRUCTIVE ANALYSIS; ELEMENTS; GRAVIMETRIC ANALYSIS; HYDROXY ACIDS; METALS; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; THERMAL ANALYSIS; TRANSITION ELEMENTS