Density of oil and its physical properties

Modern requirements, which are imposed on the quality of oil, are quite high. Therefore, its production constantly requires perfection, so that oil products meet all standards and norms. The relevant organizations control the production and the final product.

The system of standardization, which is developed by the state, is the standard on which all producers are equal. Compliance with its terms is mandatory for all.

Oil and other petroleum products is a liquid mixture having a complex composition of hydrocarbon compounds and closely boiling hydrocarbons, as well as heteroatoms of oxygen, nitrogen, sulfur, certain metals and acids.

One of the qualitative indicators is the density of oil. This is the amount of the mass at rest, which is in unit volume. The density of petroleum products and its determination is a prerequisite for an easier calculation of their mass quantity. This is due to the fact that accounting for oil in units of volume is not very convenient, because this indicator can vary depending on the temperature change.

The density of oil is measured in kilograms per cubic meter. You can easily determine the mass, knowing the volume and density. The mass, unlike the volume, does not depend on the temperature of the product.

Typically, such an indicator as the relative density of oil is used. It is defined as the ratio of the mass of oil to the mass of pure water, which is taken in the same volume, having a temperature of + 4 °. This temperature level is not chosen by chance. Water in this case has the greatest density, which is equal to 1000 kilograms per one cubic meter. In order to determine the relative density of oil, its temperature should be + 20 °. In this case, it can be from 0.7 to 1.07 kilograms per cubic meter.

There are other physical properties of oil.

Specific gravity is the weight that one unit of volume has. In another way, this is the force with which one unit of the volume of this substance is attracted to the earth. That is, it is the density multiplied by the acceleration due to gravity.

Another notion is the relative specific gravity. The value of this indicator is equal to the numerical value, which has a relative density. We use it to calculate this indicator.

The specific gravity and density of oil can change their values with temperature changes. Therefore, in order to calculate the density found at the same temperature by the same index for other temperature data, corrections for the density changes as a function of the temperature change must be taken into account.

The density of oil, calculated in practice, is considered to be an additive quantity. This is due to the fact that this indicator can be obtained as an average for several petroleum products.

For each area of oil production , its physical properties are characteristic. For example, the density of oil in the Tyumen region ranges from 825 to 900 kilograms per cubic meter on average.

The study of the physical properties of this product is necessary not only for its rational use for economic purposes and for sale on the world market. Sometimes this is very important in eliminating environmental disasters that result from the release of oil products into the environment and avoiding many mistakes.

Thus, when an accident is eliminated, attempts are made to eliminate the oil slick by arson, not taking into account that the physical characteristics of this product could change as a result of interaction with the environment. Therefore, these circumstances should be taken into account when cleaning water surfaces. This is a very important factor that should not be ignored.