Descrições de técnicas da química na produção de bens de acordo com os relatos dos naturalistas viajantes no Brasil colonial e imperial
Year: 2007
Type: article
Abstract: WHO EXPLORED COLONIAL AND IMPERIAL BRAZIL.European naturalists explored Brazil in long scientific expeditions and published accounts that make up a rich and still largely untapped historiographic source for the understanding of the history of chemistry.The production of indigo dye, the manufacture of limestone, extraction and purification of saltpeter and the production of salt are discussed.Lime was used to whitewash walls and, mixed with whale oil, as cement to glue stones in buildings of the colonial period.It was prepared by burning seashells in specifically designed ovens.Saltpeter was produced by reacting naturally occurring calcium and magnesium nitrate with potassium-rich wood ashes to yield KNO 3 .NaCl was obtained by evaporating seawater under the sun.Indigo, a native plant, was cultivated and processed to produce the renowned dye, which was exported to Europe.
Source: Química Nova
Institution: State University of Norte Fluminense
Language: Portuguese
Subfield: History and Philosophy of Science
Field: Arts and Humanities
Domain: Social Sciences
Open Access status: gold
Estimated APC paid: $330
OpenAlex ID: W2094037449