- Definition of NaAlO2
NaAlO2, also known as Sodium aluminate, is a chemical compound with the formula NaAlO2. It is a salt of sodium and aluminum oxide. In its molecular structure, sodium and aluminum atoms are linked with an oxygen atom to form a polyatomic ion. With atomic weights of 23 (Sodium) and 27 (Aluminum) and 16 (Oxygen), the molecular weight of NaAlO2 is 66.
- Properties of NaAlO2
2.1 Physical properties of NaAlO2
Sodium aluminate typically appears as a white powder or colorless crystals. This substance has no characteristic odor. It has a pH range from 11 to 14, indicating a strong basicity.
2.2 Chemical properties of NaAlO2
NaAlO2 is a strong base, which can react with acids to form salts and water. Sodium aluminate also has the ability to react with other metal ions in solution to form complex compounds.
- Common chemical equations of NaAlO2
NaAlO2 often participates in ion exchange reactions or neutralization reactions. For example: NaAlO2 + H2SO4 -> Na2SO4 + Al(OH)3, NaAlO2 + NaOH -> Na3AlO3 + H2O.
- Synthesis of NaAlO2
4.1 Laboratory synthesis of NaAlO2
Sodium aluminate can be synthesized by valence-staging of aluminum in a sodium hydroxide solution.
4.2 Industrial synthesis of NaAlO2
In industry, NaAlO2 is typically produced by calcining aluminum hydroxide with sodium hydroxide or by contacting aluminum with sodium hydroxide.