Liquid Aluminum Sulfate Type A (SALH-L) is a solution of excellent quality, which has its main use in the manufacture of paper. It is manufactured from a raw material rich in aluminum (iron-free) and sulfuric acid, through a controlled process that guarantees its quality.
|Appearance||Transparent Liquid / Light Amber|
|% Al2O3||8.0 Min.|
|% Fe2O3||0.03 Max.|
|% Insoluble||0.02 Max.|
|% Basicity (free H2SO4)||<0.30|
|Density g/cm3||1.325 Min.|
|pH (direct)||1.0 - 2.0|
Liquid Aluminum Sulfate Type A (SALH-L) can be dosed directly from the storage tank. For the manufacture of paper more dilute solutions are easily prepared due to the high miscibility of the product in water. For transferring and dosing it is appropriate to use a pump whose parts in contact with the product are made of corrosion-resistant material.
In regard to impurities, the Venezuelan Standard COVENIN 1350-2006 establishes the following: "Aluminum sulfate should not contribute more than 10% of the maximum value allowed in the current national health standards for drinking water quality". Thus, for a maximum dose of 150 mg/liter of aluminum sulfate, there are the specifications shown in the following table vs the typical values of the impurities in the product.
|Metal||10% of the Norm (mg/l)||Typical Values (mg/kg)||Specification|