Properties

Size Class

Electrical

Conductivity (mmhos·cm−1)

Ionic Strength§ (mol·L−1)

Natural pH

CEC# (cmolc·kg−1) ± SD

Ca2+ (cmolc·kg−1)

Mg2+ (cmolc·kg−1)

K+ (cmolc·kg−1)

Na+ (cmolc·kg−1)

SAR††

OC (mg·kg−1)‡‡

Colloids

Smectitic

Macro

3.93 × 10−3

4.99 × 10−5

4.92

35.05 ± 12.84

27.60

6.27

0.57

0.61

0.15

658

Nano

6.07 × 10−3

7.71 × 10−5

5.12

42.19 ± 15.12

32.64

8.00

0.78

0.77

0.17

897

Mixed

Macro

2.91 × 10−3

3.70 × 10−5

5.07

8.89 ± 1.62

3.80

3.40

1.15

0.54

0.28

645

Nano

3.09 × 10−2

3.92 × 10−4

4.92

10.51 ± 1.67

4.00

3.47

2.80

0.24

0.12

774

Kaolinitic

Macro

2.87 × 10−3

3.64 × 10−5

4.91

6.94 ± 1.85

4.40

1.60

0.45

0.49

0.28

430

Nano

3.80 × 10−3

4.83 × 10−5

5.38

13.12 ± 2.84

7.12

3.73

1.23

1.04

0.45

647

Biosolid

Macro

1.56 × 10−2

1.97 × 10−4

5.39

37.61 ± 14.85

31.60

3.60

1.64

0.77

0.18

1.3K

Nano

4.69 × 10−2

5.96 × 10−4

5.25

70.99 ± 22.98

51.68

12.13

3.98

3.20

0.57

16K