Chemical formula of aluminium sulphate

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

The Chemical formula of aluminium sulphate is Al2(SO4)3.

Characteristics of aluminium sulphate

Properties Details
Chemical formula Al2(SO4)3
Appearance White crystalline solid
Odor Odorless
Solubility Soluble in water, insoluble in alcohol
pH value Acidic (around 3)
Melting point 770 °C (1,420 °F; 1,040 K)
Boiling point Decomposes at high temperatures
Density 2.672 g/cm3
Uses Water treatment, paper manufacturing, dyeing, tanning, and in the production of other aluminum compounds.

Reaction of aluminium sulphate  Alkali Earth Metal

Alkali Earth Metal Reaction with Aluminum Sulfate
Calcium (Ca) Ca + Al2(SO4)3 → CaSO4 + 2Al(OH)3
Magnesium (Mg) Mg + Al2(SO4)3 → MgSO4 + 2Al(OH)3
Barium (Ba) Ba + Al2(SO4)3 → BaSO4 + 2Al(OH)3

Reaction of aluminium sulphate  Alkaline Earth Metal

 
Alkaline Earth Metal Reaction with Aluminum Sulfate
Beryllium (Be) No reaction
Magnesium (Mg) Mg + Al2(SO4)3 → MgSO4 + 2Al(OH)3
Calcium (Ca) Ca + Al2(SO4)3 → CaSO4 + 2Al(OH)3
Strontium (Sr) Sr + Al2(SO4)3 → SrSO4 + 2Al(OH)3
Barium (Ba) Ba + Al2(SO4)3 → BaSO4 + 2Al(OH)3
 

Reaction of aluminium sulphate  Transition Metal

Transition Metal Reaction with Aluminum Sulfate
Iron (Fe) Fe + Al2(SO4)3 → FeSO4 + 2Al(OH)3
Copper (Cu) Cu + Al2(SO4)3 + 4H2O → CuSO4·5H2O + 2Al(OH)3
Zinc (Zn) Zn + Al2(SO4)3 → ZnSO4 + 2Al(OH)3
Nickel (Ni) Ni + Al2(SO4)3 → NiSO4 + 2Al(OH)3
Cobalt (Co) Co + Al2(SO4)3 + 3H2O → CoSO4·7H2O + 2Al(OH)3
 

Reaction of aluminium sulphate  Non-Transition Metal

Non-Transition Metal Reaction with Aluminum Sulfate
Sodium (Na) No reaction
Magnesium (Mg) Mg + Al2(SO4)3 → MgSO4 + 2Al(OH)3
Aluminum (Al) No reaction
Silicon (Si) Si + 2Al2(SO4)3 → Si(SO4)3 + 6Al(OH)3
Phosphorus (P) No reaction
 

Reaction of aluminium sulphate Non-Metal

 
Non-Metal Reaction with Aluminum Sulfate
Carbon (C) No reaction
Nitrogen (N) No reaction
Oxygen (O) No reaction
Fluorine (F) No reaction
Chlorine (Cl) No reaction
Bromine (Br) No reaction
Iodine (I) No reaction
Sulfur (S) S + 2Al2(SO4)3 → 3SO4 + 4Al(OH)3
Phosphorus (P) No reaction
 

Reaction of aluminium sulphate Metalloid

Metalloid Reaction with Aluminum Sulfate
Boron (B) B + 3Al2(SO4)3 + 18H2O → H3BO3 + 6Al(OH)3+ 6H2SO4
Silicon (Si) Si + 3Al2(SO4)3 → Si(SO4)3 + 6Al(OH)3
Germanium (Ge) No reaction
Arsenic (As) As + 2Al2(SO4)3 + 18H2O → H3SbO4+ 6Al(OH)3+ 6H2SO4
Antimony (Sb) Sb + 2Al2(SO4)3 + 18H2O → H3SbO4 + 6Al(OH)3+ 6H2SO4
Tellurium (Te) No reaction
 

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