Optimization of the operative conditions for heteropolyacids synthesis through ion exchange

Phospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H<SUB>6</SUB>P<SUB>2</SUB>W<SUB>18</SUB>O<SUB>62</SUB>.xH<SUB>2</SUB>O and H<SUB>6</SUB>P<SUB>2</SUB>Mo<SUB>18</SUB>O<SUB>62</S...

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Autores principales: Matkovic, Silvana R., Valle, Graciela M., Briand, Laura Estefanía
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Exactas
Química
Heteropolyacid
ammonium compounds
ion exchange
HPA
POM
optimization
Wells-Dawson
phosphorus compounds
solutions
synthesis
organic acids
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/36938
http://www.scielo.br/pdf/mr/v8n3/26050.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-36938
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Heteropolyacid
ammonium compounds
ion exchange
HPA
POM
optimization
Wells-Dawson
phosphorus compounds
solutions
synthesis
organic acids
spellingShingle Ciencias Exactas
Química
Heteropolyacid
ammonium compounds
ion exchange
HPA
POM
optimization
Wells-Dawson
phosphorus compounds
solutions
synthesis
organic acids
Matkovic, Silvana R.
Valle, Graciela M.
Briand, Laura Estefanía
Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
topic_facet Ciencias Exactas
Química
Heteropolyacid
ammonium compounds
ion exchange
HPA
POM
optimization
Wells-Dawson
phosphorus compounds
solutions
synthesis
organic acids
description Phospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H<SUB>6</SUB>P<SUB>2</SUB>W<SUB>18</SUB>O<SUB>62</SUB>.xH<SUB>2</SUB>O and H<SUB>6</SUB>P<SUB>2</SUB>Mo<SUB>18</SUB>O<SUB>62</SUB>.xH<SUB>2</SUB>O respectively, were synthesized through ion exchange with a higher yield (∼ 90%) than the conventional organic route (∼ 70%). Pure, non-degraded heteropolyacids are obtained when the corresponding ammonium salt [(NH<SUB>4</SUB>)<SUB> 6</SUB>P<SUB>2</SUB>W<SUB>18</SUB>O<SUB>62</SUB>.13H<SUB>2</SUB>O or (NH<SUB>4</SUB>)<SUB>6</SUB>P<SUB>2</SUB>Mo<SUB>18</SUB>O<SUB>62</SUB>.12H<SUB>2</SUB>O] is kept in contact with an acid resin [about (1:0.8) salt:resin weight ratio] up to three days. The use of an organic media instead of an aqueous media greatly favors the completeness of the exchange.
format Articulo
Articulo
author Matkovic, Silvana R.
Valle, Graciela M.
Briand, Laura Estefanía
author_facet Matkovic, Silvana R.
Valle, Graciela M.
Briand, Laura Estefanía
author_sort Matkovic, Silvana R.
title Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_short Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_full Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_fullStr Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_full_unstemmed Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_sort optimization of the operative conditions for heteropolyacids synthesis through ion exchange
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/36938
http://www.scielo.br/pdf/mr/v8n3/26050.pdf
work_keys_str_mv AT matkovicsilvanar optimizationoftheoperativeconditionsforheteropolyacidssynthesisthroughionexchange
AT vallegracielam optimizationoftheoperativeconditionsforheteropolyacidssynthesisthroughionexchange
AT briandlauraestefania optimizationoftheoperativeconditionsforheteropolyacidssynthesisthroughionexchange
bdutipo_str Repositorios
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