Sodium Aluminate is prepared by adding excess sodium hydroxide (caustic soda) to metallic aluminum or aluminum hydroxide. Sodium Aluminate is versatile as it is used in soap making and water treatment to overcome hardness. It is used to fast the reinforced concrete hardness, and it is used in dye ponds in which the dye alizarin is used.
Sodium Aluminate is a chemical compound, and its chemical formula is NaAlO2 (it is also written as Na2OAl2O3 or Na2Al2O4). It is in the form of white crystals widely used to obtain aluminum hydroxide. Sodium Aluminate is soluble in water, and its melting point is 1800 °C.