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Direct linkJuliana Mesquita Contarini; Amanda de Sousa Martinez de Freitas; Thiago Aguiar Cacuro; Lai´s Jubini Callegario; Fernando Jose´ Luna Oliveira; Walter Ruggeri Waldman – Journal of Chemical Education, 2023
Potash, an essential raw material of the 18th century, used to be produced from the ashes of plants. Known since antiquity, it was in 1807 that Humphry Davy put an end to the decades-long controversy about its nature as a compound. The technology behind potash production was implemented in Brazil by the Portuguese naturalist Frei Velloso. The…
Descriptors: Foreign Countries, Science Instruction, Chemistry, Science History
