Sample

Si/Al

Na/Si

H2O/Na2O

Si/Al by XRF

BET [m2/g]

z-Potential at pH = 5 [mV]

Bulk density [g/cm3]

GP-1

1

0.7

20

0.99

27.5

−20.0

0.8

GP-2

2

0.7

20

1.91

3.3

−29.0

0.68

GP-3

3

0.7

20

2.84

2.3

−29.0

1.09

GP-4

4

0.7

20

3.72

1.9

−29.0

1.41

GP-5

5

0.7

20

4.86

2.1

−28.3

1.23