Interaction of caustic with various chemical compositions

Caustic soda is a substance of white color and without a pronounced smell. The chemical formula-NaOH, indicates the composition of the substance. It is able to quickly neutralize blockages, get rid of fat deposits, dirt, remove stains on the fabric, and is also used as a part of cosmetics (shampoo, cream).

Physical characteristics

Alkali caustic soda, in comparison with other substances of this group (soda ash and potassium carbonate) has a very high activity and concentration, which can cause severe burns. It absorbs moisture from the air and corrodes many materials and organic substances (paper, metals, water), dissolves in water, ethyl and methyl alcohols.

Interaction of caustic with chemicals

According to its chemical properties, caustic soda is an acid, which is a strong chemical base that can interact with various elements. At the end of the reactions, many new useful substances are obtained that are necessary for subsequent reactions:

• it has the ability to dissolve in alcohol and water,
• caustic soda reacts with acidic oxides: 2NaOH + CO₂ = Na₂CO₃ + H₂O (excess NaOH);
• reacts with non-metals (having a high electro-chemical potential);
• when reacting with ammonia, it ignites.

Caustic soda and hydrochloric acid in the reaction process: NaOH + HCl = 2NaOH + 2HCl = 2NaCl + H2O combine to form a neutral, poorly dissociated water molecule, resulting in a neutralization reaction. The reaction of sulfuric acid and caustic soda produces sodium sulfate, which is used for making soap, dyeing textiles, and in the oil refining industry. Caustic soda is able to interact with various chemical elements in any aggregate states (liquid, solid, gaseous).

Nitric acid with caustic soda as a result of interaction form sodium nitrate, which is used in the production of glass, and in medicine – as a vasodilator, as a bronchodilator and laxative.

In the reaction of caustic soda and hydrogen sulfide, an average salt is obtained-at 2NaOH and an acidic salt, if the proportion is 1k1.

When chlorine and caustic soda interact, sodium hypochlorite is formed, which is used as a water disinfection, as an antiseptic and oxidizer.

To neutralize caustic soda, you need to use a solution of acetic or citric acid, if not, you can use a solution of boric acid.

Chemical methods for the production of sodium hydroxide

Caustic soda dissolves in water and releases a large amount of heat. Currently, there are three known methods by which sodium hydroxide can be obtained. These include pyrolytic, calcareous and ferritic methods of production, but due to significant shortcomings, they were replaced by more efficient electrochemical methods. In the pyrolytic method, sodium bicarbonate is used as products, which, as a result of the reaction, decomposes into three main chemical products: sodium carbonate, water and carbon dioxide.After that, the resulting substance is placed in special cooling chambers and water is added.

In the lime production method, soda and slaked lime are used as raw materials, subject to a certain temperature, which is 80 degrees. In the end, we get two substances: sodium hydroxide and a precipitate of calcium carbonate, which is separated by filtration. The caustic soda itself melts and is poured into iron containers, where it is further crystallized. In the ferritic method, the processes of sintering soda ash with iron oxide at a temperature of about 900 degrees are carried out. In the end, sodium hydroxide will be obtained by treating sintered water, and after that it is evaporated, after which the substance acquires a final crystallized form.

Caution when using

It should be remembered that the caustic soda alkali is active and dangerous, and in order to avoid serious injuries during operation, it is necessary to observe the safety measures that are provided for working with chemicals. Be sure to use personal protective equipment: overalls, gloves, glasses. In case of contact with the toxic substance on the skin, it is necessary to immediately rinse under running water and seek help from a medical institution. When working with caustic soda, it is necessary to wear eye protection, and in their absence, carefully monitor that the substance does not get into the eyes, as this can lead to loss of vision. In no case should you swallow or inhale (if the substance is liquid), as this can cause burns to the mucous membrane of the respiratory tract, esophagus or larynx. If you still get a substance in your mouth, then you need to rinse with plenty of water and seek medical help.

Buy caustic soda wholesale

The Basis plant has been a supplier of imported caustic soda to Russia for several years. Our successful experience has shown that caustic from abroad can be an excellent alternative to domestic.

If you are interested in wholesale batches of caustic soda-you can leave a request on our website or contact our managers by phone.