Document Detail

End-point sharpness in thermometric titrimetry.
MedLine Citation:
PMID:  18960169     Owner:  NLM     Status:  In-Data-Review    
It is shown that the sharpness of an end-point in a thermometric titration where the simple reaction A + B right harpoon over left harpoon AB takes place, depends on Kc(A') where K is the equilibrium constant for the reaction, and c(A') is the total concentration of the titrand (A) in the reaction mixture. The end-point is sharp if, (i) the enthalpy change in the reaction is not negligible, and (ii) Kc(A') > 10(3). This shows that it should, for example, be possible to titrate 0.1 M acid, pK(A) = 10, using a thennometric end-point. Some aspects of thermometric titrimetry when Kc(A') < 10(3) are also considered.
H J Tyrrell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  14     ISSN:  0039-9140     ISO Abbreviation:  Talanta     Publication Date:  1967 Jul 
Date Detail:
Created Date:  2008-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  843-8     Citation Subset:  -    
Department of Chemistry, Chelsea College of Science and Technology, Manresa Road, London S.W.3 U.K.
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