hector
Well-Known Member
Hi there !
I'm trying to reduce the pH of my water which is 7.3 by adding Gypsum .
Its solubility is 2 g/l at 20C .
I just added 0.3 grams of it to 1.2 liters of water at 21C , but I can see the salt precipitating and not dissolving completely !
I also added 0.5 grams of CaCl2 .
Now , the pH is 6.7 .
Can I accept this pH , as not all of the gypsum is dissolved ?
Hector
I'm trying to reduce the pH of my water which is 7.3 by adding Gypsum .
Its solubility is 2 g/l at 20C .
I just added 0.3 grams of it to 1.2 liters of water at 21C , but I can see the salt precipitating and not dissolving completely !
I also added 0.5 grams of CaCl2 .
Now , the pH is 6.7 .
Can I accept this pH , as not all of the gypsum is dissolved ?
Hector