case studies

With increasing degrees of substitution of the cationic starch molecules, the consumption of titrant increases.

Method Polyelectrolyte titration

Sample Cationic starch

Solid Content 0.1 %

Sample preparation A mixture of 1.00 g starch and 99.0 g deionized water, heated to boiling point (about 10 min) until a clear solution is obtained. Subsequently fill up 10.0 g of this solution with 90.0 g deionized water. Use 10.0 ml of this solution for the titration.

Titrant 0.001 N PES-Na

Equipment PCD03, PCD-T3