et(min)*

Water (A)

Water (B)

Water (C)

 

 

 

 

0

7,36

7,36

7,36

3

11,50

10,80

7,41

10

11,30

11,00

8,28

20

11,20

11,25

8,50

30

nm

11,15

8,62

40

nm

nm

8,80

50

nm

nm

nm

Table 6: pH results for Water (A): tcG plus ammonium hydroxide; Water (B): tCG plus sodium hydroxide and Water (C): tCG plus lime.