what type of aluminum is soluble
The most abundant aluminum compounds are aluminum oxide and aluminum hydroxide, and these are water insoluble. Aluminum oxide may be present in water both in alkalic form (2Al 2 O 3 (s) + 6H + 3+ (aq) + 3H 2 O (l)) and in acidic form (2Al 2 O 3 (s) + 2OH - 2 - (aq) + H 2 O (l)).An example of a water soluble aluminum compound is aluminum sulphate with a water solubility of 370 g/L.iver water generally contains about 400 ppb of aluminum. Aluminum mainly occurs as Al 3+ (aq) under acidic conditions, and as Al(OH) 4 - (aq) under neutral to alkalic conditions. Other forms include AlOH 2 + (aq) en Al(OH) 3 (aq).