01764nam a22002777a 4500 20231106100600.0 231030b ||||| |||| 00| 0 eng d 0021-9584 RIEBPL Library 540.7 Juliana Mesquita Contarini et al ... An Experiment of Chemistry with Historical Context: 18th-Century Potash Production in Brazil (Journal Article) Washington, United States :American Chemical Society ,January 10, 2023 350-354p. American Chemical Society, Volume 100, Issue 1 ***______{For Hard Copy, Please visit Library.}________*** Abstract:- 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 steps in potash production and the related difficulties and controversies about its composition make this case study a convenient tool for teaching the history of chemistry. The results concluded that the potash production from ashes provided proper context for teaching practical extraction yield, carbonate identification, and pH determination. High School/Introductory Chemistry First-Year Undergraduate/ General Laboratory Instruction Hands-On Learning/Manipulatives Gravimetric Analysis Precipitation /Solubility Acids/Bases ReactionsShow Less https://doi.org/10.1021/acs.jchemed.2c00896 PER 0 0 0 0 RIEBPL RIEBPL 2023-11-06 0 540.7 2023-11-06 00:00:00 2023-11-06 PER 44692 44691