Data/hora: 11/06/2024 02:15:59

Provedor de dados: | 53
País: | Brazil
Título: | Estudos químico-espetrográficos e roentgenográficos da hidromagnocalcita
Autores: | Paiva Netto,J. E. de; Catani,R. A.
Data: | 1945-05-01
Ano: | 1945
Resumo: | In the vicinity of the city of Rio Claro (S. Paulo, Brazil) occurs a type of calcareous rock which was studied chemically, spectrographically and roentgenographically. The roentgenograph investigations showed that the rock belong to the hydromagnocalcite, CaCO3+Mg(OH)2, and not the dolomitic type as it was considered up to the present. The first four roentnogramms show the crystalline structure of the mineral and the fifth the crystalline structure of the synthetic mixture of CaCO3+Mg(OH)2 in the proportions indicated by the chemical analysis of table I. The spectrographical analysis revealed the presence of: Mn, Fe, Al, Sn, Cu, Na, Sr, Zn and Pb, the percentages of which reached a value less than 0,1%.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051945000500003
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/S0006-87051945000500003
Formato: | text/html
Fonte: | Bragantia  v.5 n.5 1945
Fonte: | info:eu-repo/semantics/openAccess