Potentiometric and spectrophotometric determination of the protonation constant of hexamethylenetetramine.
The protonation constant of hexamethylenetetramine (urotropine) was determined by a potentiometric and a spectrophotometric method. The calculations gave log K(HL) (concentration constants): 4.89 at mu = 0.1 and 5.05 at mu = 0.5. The temperature was 25 degrees and potassium chloride was used to adjust the ionic strength.
Ivaska
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Department of Analytical Chemistry, Abo Akademi, Abo 50, Finland.
Harju
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