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Table 1 The values of the polylysine and polyaspartic acid dissociation degree and the types of surface groups in the analyzed pH range

From: Application of the zeta potential measurements to explanation of colloidal Cr2O3 stability mechanism in the presence of the ionic polyamino acids

pH α ASP (%) α LYS (%) Surface active groups
4.0 65 100 Mainly ≡ CrOH2 +
7.6 99.9 99.9 Equal amount of ≡ CrOH2 + and ≡ CrO
10.0 100 78 Mainly ≡ CrO
  1. From Ostolska and Wiśniewska [22]