Decomposição térmica do bicarbonato de sódio: do processo Solvay ao diagrama tipo Ellingham

Química Nova

Alessandra De Souza Maia¹  Viktoria Klara Lakatos Osorio¹ 

[1] ,Universidade de São Paulo Instituto de Química São Paulo SP

关键词: sodium bicarbonate;    Ellingham type diagrams;    Solvay process;   

DOI  :  10.1590/S0100-40422003000400026

来源: SciELO

【 摘 要 】

A didactic experiment based on the thermal decomposition of sodium bicarbonate using a reagent found in the marketplace is proposed. The reaction products are identified by qualitative tests and stoichiometric calculations. The thermal stability of carbonates and the influence of lattice energies are discussed, emphasizing periodic trends in the alkali and alkaline earth families. The industrial importance of the reaction is also explored.

【 授权许可】

CC BY-NC   
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