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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]