What is a solvent and where is it used

It is difficult to imagine modern industry, production and everyday life without solvents. They are also used both for diluting paint materials and for preparing the surface for painting.

Solvent is one of the popular solvents. In today’s article, we will analyze the types and composition of the solvent, as well as where the solvent is used.

What is a solvent?

Solvent is a solvent obtained by pyrolysis of petroleum raw materials or during the rectification of benzene fractions of coke chemical production and contains a mixture of hydrocarbons.

Solvent solvent is a transparent (colorless) or slightly yellowish liquid, which has a characteristic pungent smell for the solvent. The peculiarity of the solvent is that it is able to perfectly dissolve a large number of types of paint and varnish materials, as well as quickly evaporate, taking all odors with it.

A solvent is an oily, volatile substance that is lighter than water. This solvent is a fire hazard, so fire safety techniques should be followed when handling and storing it.
The main characteristics of the solvent:

• density: 867 kg/m3 (at 20°C);
• boiling point: 120-200°C;
• ignition temperature: 36°C;
• auto-ignition temperature: 488°C;
• volatility according to xylene: 1.01-1.08.

The chemical formula of the solvent solvent: СnН2n(ОН)2.

What are the types of solvent?

As mentioned earlier, the solvent can be obtained in two ways: the first – pyrolysis of oil fractions, the second – coking of hard coal. Accordingly, there are two types of solvent: oil and coal.

The solvent is petroleum

Such a solvent is a derivative of oil refining, which occurs by heating oil to high temperatures. Thus, vapors of hydrocarbons with boiling points are formed, each of which creates chemical mixtures. At the appropriate boiling point, a solvent also comes out.

Coal solvent

This solvent is a mixture of aromatic hydrocarbons of the benzene series obtained in the process of processing purified fractions of crude benzene and resin at coke plants.

It is important to note that these two types of solvent do not differ at all, except for the method of obtaining them. Therefore, if you need to use a solvent, you can safely choose either petroleum or coal.

Fields of application of the solvent

Like many other solvents, the solvent has found its use in many branches of industry, production, and also in everyday life.

The most popular areas and fields of solvent use are described below.

Solvent use in everyday life

In everyday life, this solvent can be used to clean surfaces from various types of contamination.

Also, a solvent is a solvent that has found its use as an insecticidal agent for insect control. It is usually used by people who grow their own crops and want to get rid of pests that can spoil it. The solvent solvent does not poison the fruits, they are absolutely safe for ingestion. However, it is important to note that if solvent treatment has taken place, vegetables and fruits should be thoroughly washed in clean water before eating.

Application of solvent in mechanical engineering

In the machine-building industry, the solvent found its use as a washing liquid. It is widely used for cleaning mechanisms, nodes and parts.

In addition to this function, the solvent is an aggressive solvent that, in combination with natural rubber, forms a solvent glue that is resistant to acids and provides very strong bonding of various surfaces and parts.

Use of a solvent as a solvent

When talking about what a solvent is, the first thing that comes to mind is a solvent. And not for nothing, because the solvent is mostly used as a soluble liquid!

Solvent is widely used in the paint industry. Here it is used to dilute various types of paint and varnish materials to the desired consistency before applying to the surface.

In addition, it can be used to degrease the surface before painting works in order to ensure an excellent level of adhesion (cohesion).

With the help of a solvent, petropolymer, alkyd, oil compounds, including bitumen, rubber, mastic, oil, are diluted.

As a solvent, the solvent takes part in the production of varnishes and paints.

Solvent use in printing and marketing

Usually, manufacturers of printing inks buy solvent in large batches. This is due to the fact that solvent paints are resistant to atmospheric phenomena, so they are often used for outdoor advertising, screen and inkjet printing.

When exposed to rain and sunlight, these solvent-based paints do not lose their brightness and saturation, and retain their attractive appearance for a long time.

Other fields of solvent use

Among other industries in which the solvent is also actively used, the following are distinguished:

• production of auto chemicals and auto cosmetics;
• removal of unpleasant odors – the solvent binds odors and then evaporates with them;
• cleaning – the solvent perfectly removes deposits of any type, including soot, which is why it is widely used for cleaning nozzles, fuel equipment and combustion chambers of engines.

Storage rules and safety when working with a solvent

Before specifying the basic rules of use and understanding their importance, you need to remember what a solvent is!

Solvent is a volatile, fire-hazardous and quite toxic substance, therefore, when storing this material, as well as working with it, safety techniques must be observed:

• Room ventilation is an often-mentioned rule, but here it should be noted that ventilation when working with a solvent is a vital necessity, and not just a whim of the manufacturer or seller of this solvent. Take care of good ventilation both in the premises where work with this solvent is carried out, and in the premises where it is stored.
• Protective gloves – will help to protect the skin of the hands from the solvent and avoid adverse reactions.
• Protective glasses and respirators – the solvent is a volatile substance with toxic vapors that have a narcotic effect on humans. Therefore, personal protective equipment should be used to protect the respiratory tract and mucous membranes.
• Correct storage – the solvent should be stored in the manufacturer’s container.
• Fire safety – keep containers of this solvent away from sources of fire and heat, avoid direct sunlight.

Frequently asked questions