Benzene: The Physical Properties and Chemical Properties

Benzene is a compound used in our daily life. Benzene is used for the manufacture of chemicals and other household items. The chemical formula of benzene is C 6 H 6. The atomic structure of benzene is a hexagon in which carbon atoms and hydrogen atoms are bonded (Fig. 1). When benzene was first discovered, it was called hydrocarbon. The chemical we are currently calling benzene was discovered by Michael Faraday in 1825. Michael Faraday found benzene in an oily film deposited from the gas used for lighting.

There are two types of material change: physical change and chemical change. As its name implies, physical changes affect the physical properties of substances and chemical changes affect the chemical nature of the substance. Many physical changes are reversible (heating and cooling, etc.), but chemical changes are usually irreversible or reversible only if additional chemical changes are possible. Another way of thinking is that substances are not fundamentally different substances due to physical changes, but substances may become chemically new substances due to chemical changes. For example, a mixed smoothie has two physical changes. The change in shape of each fruit and the mixture of various fruits. There is no chemical change in the smoothie ingredients during mixing (eg, there is no change in fruit moisture and vitamins), so it is known that no chemical changes occur.

All substances have different physical and chemical properties and may undergo physical or chemical changes. Physical properties such as hardness and boiling point, and physical changes such as melting and freezing do not include changes in the composition of the substance. Chemical properties such as flammability and acidity, and chemical changes such as rust include generation of substances different from existing materials. Measurable attributes fall into two categories. The wide nature depends on the amount of material present, such as the quality of gold. The reinforcing properties do not depend on the amount of material present, for example the density of gold. Heat is an example of wide nature, and temperature is an example of a dense nature.