Every aspect of human life and the needs of social development are closely related to chemistry.

First of all, from the point of view of our daily necessities, colorful clothes need chemical treatment and printing and dyeing, and colorful synthetic fibers are a great contribution of chemistry. One of the keys to filling grain bags and enriching vegetable baskets is to develop the production of chemical fertilizers and pesticides. Processing and manufacturing food with good color, smell and taste can not be separated from various food additives, such as sweeteners, preservatives, spices, seasonings, pigments and so on. Most of them are extracted from natural products by chemical synthesis or chemical separation. Materials used in modern buildings, such as cement, lime, paint, glass and plastic, are all chemical products. All kinds of modern means of transportation used to walk instead of walking need not only gasoline and diesel as power, but also various gasoline additives, antifreeze and lubricants for mechanical parts, all of which are petrochemical products. In addition, people need drugs, detergents, beauty products, cosmetics and other daily necessities are also chemicals. It can be seen that our food, clothing, housing and transportation are all related to chemistry, and everyone needs to use chemicals. It can be said that we live in a chemical world.

From the perspective of social development, chemistry plays an important role in realizing the modernization of agriculture, industry, national defense and science and technology. Agricultural production should be greatly improved, and the all-round development of agriculture, forestry, animal husbandry, sideline production and fishery depends on the achievements of chemical science to a great extent. Chemical products such as chemical fertilizers, pesticides, plant growth hormones and herbicides can not only increase yield, but also improve farming methods. Development of new pesticides with high efficiency and low pollution. The comprehensive utilization and reasonable storage and transportation of agricultural and sideline products also require the application of chemical knowledge. In terms of industrial modernization and national defense modernization, it is urgent to develop various metallic materials, nonmetallic materials and polymer materials with different properties. The development, refining and comprehensive utilization of coal, oil and natural gas contains extremely rich chemical knowledge, and has formed specialized fields such as coal chemical industry and petrochemical industry. The production of missiles and the launch of artificial satellites require a variety of chemical products with special properties, such as high energy.

With the improvement of science and technology and production level, new experimental means and the wide application of electronic computers, not only the chemical science itself has developed by leaps and bounds, but also the mutual infiltration and intersection between chemistry and other sciences has greatly promoted the development of other basic and applied sciences and the formation of interdisciplinary subjects. At present, several major issues of international concern-environmental protection, energy development and utilization, development of functional materials, and exploration of the mysteries of life processes-are closely related to chemistry. With the development of industrial production, there are more and more industrial waste gas, waste water and waste residue, which will pollute the environment if not handled properly. Global warming, ozone layer destruction and acid rain are three major environmental problems. It is endangering the survival and development of mankind. Therefore, it is an important task for chemists to treat and utilize the three wastes, find ways to purify the environment and monitor pollution. In terms of energy development and utilization, chemists have made great contributions to the utilization of coal and oil for mankind. Now we are actively trying to develop new energy sources. The research on the utilization of solar energy and hydrogen energy is the frontier of chemical science research. Material science is a marginal science based on chemistry, physics and biology. It mainly researches and develops new materials with electrical, magnetic, optical and catalytic properties, such as high-temperature superconductors, nonlinear optical materials and functional polymer synthetic materials. Life is full of various biochemical reactions, and chemists and biologists are exploring the mystery of life phenomena together.

In short, chemistry is closely related to all sectors of the national economy, all fields of cutting-edge science and technology, and all aspects of people's lives. It is an important basic science, and its relationship and position in the whole natural science is just as Pimentelger C pointed out in the book Opportunities in Chemistry-Today and Tomorrow. "Chemistry is a central science, which is closely related to the needs of all aspects of social development." It is not only the professional knowledge of chemists, but also an integral part of the scientific knowledge of the broad masses of the people. Popularizing chemistry education is the need of social development and improving the cultural quality of citizens.