Thermal decomposition of sodium bicarbonate: from Solvay process to an Ellingham type diagram

Química Nova

Maia, Alessandra de Souza¹  Osorio, Viktoria Klara Lakatos¹  Universidade de São Paulo, São Paulo¹ 

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

DOI  :  10.1590/S0100-40422003000400026

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown