(1) Molecular Formula: Al2(SO4)3 XH2O (2) Properties: It is white or gray flake, particle or massive crystallization. Apt to cake after moisture absorption when laid in air for a long time. A little green because of Fe2+, yellow when Fe2+ is oxided to Fe3+. Soluble in water easily, and water solution is acid. (3) Use: Used with saponified rosin as paper strength enhancing binder to improve waterproof property. Also can be used in printing and dyeing, leather, color agentia and wood trust proof. (4) Packing: In 25kg or 50kg woven bags with inner film. (5) Specification:
Items
First Grade
Al2O3 ,% ≥
15.80
Fe,% ≤
0.30
Water insoluble,% ≤
0.10
PH(1% water solution), ≥
3.0
2. Aluminum Sulfate—for water purifying
(1) Molecular Formula: Al2(SO4)3 XH2O (2) Properties: It is white or gray flake, particle or massive crystallization. Apt to cake after moisture absorption when laid in air for a long time. A little green because of Fe2+, yellow when Fe2+ is oxided to Fe3+. Soluble in water easily, and water solution is acid. (3) Use: Mainly used in industrial water and waster water treatment. (4) Packing: In 25kg or 50kg woven bags with inner film. (5) Specification:
Items
First Grade
Standard
Al2O3 ,% ≥
15.60
15.60
Fe,% ≤
0.52
0.70
Water insoluble,% ≤
0.15
0.15
PH(1% water solution), ≥
3.0
3.0
§ Note: Pictures above are the reference. The criterion is the object.