Caustic soda is a corrosive element.
The Latin word corrosīvus came to our language as corrosive . This term ( corrosive ) is used as an adjective to refer to that which is capable of corroding .
The verb corroer , in turn, comes from the Latin corrodĕre and refers to wearing something down gradually . The concept is usually used regarding the progressive destruction of a metal , which may include an alteration of its shape.
A corrosive element , therefore, gradually causes the deterioration of a material . If the process progresses, what suffers corrosion can end up destroyed.
The corrosive and the human being
Although the idea of corrosion is linked to damage to metallic bodies or other materials, it is common to classify as corrosive chemicals that have the capacity to harm people's health either through contact, ingestion or inhalation.
When an individual touches a corrosive substance , they can suffer what is known as a chemical burn . Unlike common burns, in this case it is not necessary for there to be a heat source. Furthermore, the injury occurs instantly, as soon as contact occurs.
Calcium oxide ( lime ), sodium hydroxide ( caustic soda ), and sulfuric acid are some of the corrosive substances that can cause injuries. To avoid inconveniences, those who handle this type of substance must use gloves, glasses, protective suits and other safety equipment.
It is important to mention that, if found in a low concentration, the corrosive chemical can act as an irritant . This means that it causes pain , itching or burning and that it can inflame the area, although without causing injury.
Oxidation is a corrosive process that metals usually suffer.
Corrosion of metals and alloys
Corrosion wears down an alloy or metal through an electrochemical reaction or a direct chemical attack . A current of electrons is established between the corrosive agent and the damaged material: the emitter acts as an anode and the receiver as a cathode , producing a reduction-oxidation reaction .
In fact, oxidation is considered the most common form of corrosion. The metal, by losing electrons, increases its oxidation state.
To prevent corrosion, an anticorrosive can be used. This is the name given to the product capable of inhibiting the process, generally establishing a layer that prevents the corrosive medium from accessing the metal.
The corrosive sublimation
The dictionary of the Royal Spanish Academy ( RAE ) indicates that mercuric chloride is known as corrosive sublimation . This chemical compound was used in the field of medicine to disinfect, although it has a high level of toxicity.
Corrosive sublimation can cause diarrhea, vomiting and serious bleeding . If a minimal amount of this substance is ingested, the consequences are usually lethal.
The adjective applied to a person
It is interesting to note that an individual who is ironic, biting or offensive is classified as corrosive. This characteristic can be reflected through their way of expressing themselves or their humor .
Someone who is corrosive or caustic tends to resort to satire or mockery to criticize or attack others. British actor Sacha Baron Cohen , for example , became famous for the corrosive humor he displayed through characters such as Borat and Admiral General Haffaz Aladeen .