Oil pinyin is [yóu], the details are as follows:

I. Definition and basic properties of oil:

Oil refers to a class of viscous properties, insoluble in water, good lubricating properties, and can be combustible liquid substances. Oils are usually composed of organic compounds, including vegetable oils, animal fats and mineral oils. They are mainly characterized by high molecular weight and low polarity, and often present a liquid or semi-liquid state.

Two, the classification and types of oil

1, according to the source of classification

Vegetable oils: such as soybean oil, peanut oil, rapeseed oil, etc., extracted from the seeds or fruits of plants.

Animal oils: such as tallow, suet, fish oil, etc., extracted from the fatty tissues of animals.

Mineral oils: such as petroleum, kerosene, lubricants, etc., are extracted from mineral resources mined underground.

2, according to the use of classification

Edible oils: widely used in cooking, flavoring and food processing, such as vegetable oils and animal oils.

Industrial oils: including lubricants, coolants, insulating oils, etc., which play an important role in manufacturing and machinery.

Energy oil: mainly refers to fossil energy sources such as oil and natural gas, which are widely used in power generation, transportation and fuel.

Three applications of oil:

1. Food industry

Cooking: oil can provide heat and grease texture to make the food more delicious and savory.

Condiments: Oil can be used to make condiments, such as soy sauce and peanut butter.

Food processing: oils play a role in food processing by lubricating, emulsifying, stabilizing and preserving freshness.

2, Manufacturing:

Lubrication: In the working process of mechanical equipment, oil has the function of lubrication and reducing friction loss to ensure the normal operation of mechanical equipment.

Coolant: Some special processes require the use of oil for cooling to control the temperature and maintain the stability of the working environment.

Insulating oil: Used to insulate electrical equipment and cables to prevent safety problems such as short circuits and fires in electrical components.

3, energy field

Fuel oil: fossil energy sources such as oil and natural gas are the main sources of fuel, used in power generation transportation and industrial production.

Biofuels: made from renewable resources such as vegetable oils and animal fats, is a new form of energy to replace traditional petroleum fuels.