[shavira]

Hello guys,

Do you have any idea to dissolve Aluminum Sulfate powder to liquid (Al2O3 content from 17%  to 8%)?
I put ratio of 1:1 of alum and water, do i have Al2O3 content 17% or half of it?

Thanks

[billnotgatez]

http://en.wikipedia.org/wiki/Aluminium_sulfate
Aluminium sulfate

From WIKI

Solubility in water
31.2 g/100 mL (0 °C)
36.4 g/100 mL (20 °C)
89.0 g/100 mL (100 °C)

[Hunter2]

For me its unclear what you want to know.

Do you want to how much Aluminium sulfate correspond to a solution of 17% Aluminiumoxide, if it would be existing.

What does 1:1 mean  1 kg water and 1 kg Sulfate?

If so you have to calculate the corresponding moles. if yo have that you can convert to the mass of the aluminium oxide.  You need the density of your solution if you use the volumes. If stay with mass then you can calculate how much water you really need.

[shavira]

http://en.wikipedia.org/wiki/Aluminium_sulfate
Aluminium sulfate

From WIKI

Solubility in water
31.2 g/100 mL (0 °C)
36.4 g/100 mL (20 °C)
89.0 g/100 mL (100 °C)

that means the solution would have precipitate after it right?