Why can’t alkaline solutions be stored in aluminum containers?
| May 24, 2021 | education
Al is an amphoter and reacts with alkali solutions, forming soluble complex hexohydroxoaluminates of alkali metals:
2Al + 6KOH + 6H2O = 2K3 [Al (OH) 6] + 3H2 ↑;
2Al + 6NaOH + 6H2O = 2Na3 [Al (OH) 6] + 3H2 ↑.
Thus, storage of alkalis in aluminum containers can contaminate solutions with the products of interaction and gradually dissolve the dishes themselves.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
