Ester oil is a brown liquid chemical, generally processed from the seeds of certain plants (such as soybeans, peanuts, etc.), and is widely used in lubricating oils and fuel oils. It is a type of ester. Compared with other ester compounds, it has a larger molecular weight and a certain viscosity and viscosity. Ester oil has many important uses, such as stabilizers, solvents, lubricants, and basic components of plant essential oils in the pharmaceutical and food industries.
Mineral oil is a liquid extracted directly from natural petroleum, mainly used in industry, automobiles, etc. This oil has a long service life, but it is seriously polluting the environment.
Differences in composition between ester oil and mineral oil
1. Ester oil
Ester oil molecules contain COO and CH2 groups, as well as alcohol groups or epoxy groups. Due to the different combinations of these groups, ester oil has a variety of different chemical structures and properties.
2. Mineral oil
The main components of mineral oil are hydrocarbons, including alkanes, cycloalkanes and aromatic hydrocarbons. Since these molecules are only connected by weak chemical bonds, petroleum molecules can easily react chemically to produce a variety of different products.
Differences in physical and chemical properties between ester oil and mineral oil
1. Ester oil
Ester oil generally has a lower melting point, which can reach -90℃, and is more suitable for use in low temperature environments than mineral oil. At the same time, because ester oil molecules contain polar groups, they are usually compatible with water and easily degraded.
2. Mineral oil
Mineral oil usually has a higher melting point than ester oil, about -20℃ to -40℃. Since they are non-polar molecules, they usually do not mix with water and will cause pollution problems after long-term use.
