Caustic soda in metallurgy: aluminum

Aluminum and caustic soda

The use of caustic soda in many industries is associated with the peculiarity of interaction with various metals: zinc, tin, copper. It is an important component in the production of aluminum.

caustic aluminum

Industrial use of caustic soda

In the chemical industry, the widespread use of sodium hydroxide is associated with its alkaline properties. This applies to the production of aluminum, detergents and cleaning products, in the pulp and paper industry and the food industry.

It plays an important role in neutralizing acids and determining their concentration, absorbing acid gases and removing heavy metals. Mostly, an aqueous solution of sodium hydroxide is used. Used to produce aluminum:

  • at the first stage after ore mining, water is washed out and raw materials are crushed;
  • the next step in obtaining aluminum oxide is dissolution in sodium hydroxide;
  • then the decomposition of sodium aluminate occurs, as a result of which soda lye or an aqueous solution of caustic soda is formed;
  • At the final stage of aluminum production, heating occurs at a temperature above 1000 ° C, at which decomposition occurs and a powder is obtained, from which, in the process of electrolytic reduction, the metal is obtained in its pure form.
caustic aluminum

The product obtained in this way is of high quality and purity. The most common substance in the aluminum etching process is an aqueous solution of caustic soda.

It is used for removing scale or grease, for making typographic plates or decorative elements, as well as for engraving.

This method is the cheapest, but at the same time presents certain difficulties in application.

Where to buy wholesale caustic

Our plant is a manufacturer and supplier of nonmetallic materials in Russia and abroad. As a result of their activities, our specialists have selected the best foreign partners supplying chemical materials, including caustic soda from foreign countries. 

We work only with wholesale customers, most often directly with consumers, which allows us to provide the most favorable prices.

Details - call the sales department or leave a request.