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Table 9 Specific molecular properties of (P)HCA used for rank correlation

From: Adsorption of aliphatic polyhydroxy carboxylic acids on gibbsite: pH dependency and importance of adsorbate structure

(P)HCA (P)HCA monolayer concentration Minimal projection area of PHCA Maximal projection area of (P)HCA Dissociation constant of OH next to carboxyl-group Molecular volume Molecular mass No. of negative charges at pH 13.3
C asurface, max C asurface, min PAmin PAmax pK bOH1 V bvdw M z c
mmol kg−1 Å2 Å3 g mol−1
GLY 108.0 70.6 16.9 25.9 14.8 64.5 76.0 1.032
THR 73.5 46.3 24.9 39.5 13.0 115.8 136.1 1.734
TAR 74.3 44.0 24.6 41.5d 13.0 117.9 150.1 2.718
GLU 57.2 35.5 31.9 51.5d 13.4 167.3 196.2 2.428
GLA 56.2 33.7 32.5 54.2 12.6 169.4 210.1 3.422
  1. aCalculation based on maximal/minimal projection area, respectively
  2. bFrom [33]
  3. cCalculation based on dissociation constants of functional groups
  4. dData from [23]