Journal of the Brazilian Chemical Society

Autor:	Korn, Mauro, Andrade, Marta Valéria Almeida Santana de, Borges, Sivanildo da Silva, Sousa, Clarivaldo Santos de, Oliveira, Fábio Santos de
Jazyk:	angličtina
Rok vydání:	2003
Předmět:	reagent generation chromium oxidation free radicals hydride ultrasonic irradiation
Zdroj:	Repositório Institucional da UFBA Universidade Federal da Bahia (UFBA) instacron:UFBA
Popis:	P.254-258 Submitted by Rigaud Andréa (andrearigaud16@yahoo.com.br) on 2012-01-10T16:27:09Z No. of bitstreams: 1 15603.pdf: 95770 bytes, checksum: 4b800329c400edb7fbc9b87b2b310db5 (MD5) Made available in DSpace on 2012-01-10T16:27:09Z (GMT). No. of bitstreams: 1 15603.pdf: 95770 bytes, checksum: 4b800329c400edb7fbc9b87b2b310db5 (MD5) Previous issue date: 2003-03 In this work, the potential of reagent generation assisted by ultrasonic irradiation was evaluated for Cr(III) oxidation and arsine formation. Free radical formation by sonolysis of aqueous solutions was evaluated. The sonication of an aqueous solution saturated with CCl4 leads to chlorine radical formation while the irradiation of water in the presence of metallic zinc leads to hydrogen production. The low relative standard deviations of the proposed procedures indicate that the method can be applied for analytical purposes. São Paulo
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______3056::88b662b038a7e2d3cf9f83d1c2b3aa0e http://www.repositorio.ufba.br/ri/handle/ri/5088 Zobrazit plný text záznamu