简介:The pulp processing solutions mainly contain NaOH, Na2S, and Na2CO3. The composition of these
components should be monitored in pulp quality control process.
This application note introduces the method in which barium 简介:The pulp processing solutions mainly contain NaOH, Na2S, and Na2CO3. The composition of these
components should be monitored in pulp quality control process.
This application note introduces the method in which barium chloride is added to precipitate
carbonate salt to titrate sodium hydroxide and sodium sulfide with hydrochloric acid and then
formaldehyde is added to titrate the alkali hydroxide formed by its reaction with sulfide with
hydrochloric acid. Titration is continued to titrate the carbonate salt successively at this stage. (See
“Note” for details of chemical reactions occurring during the titration.)详细>