Green chemistry, also known as environment-friendly chemistry, environment-friendly chemistry and clean chemistry, uses chemical techniques and methods to reduce or eliminate the generation and use of harmful substances.
The core of green chemistry is to reduce and eliminate the environmental pollution caused by industrial production from the source by using chemical principles.
According to the principle of green chemistry, the ideal chemical production mode is that all atoms of reactants are transformed into the expected final product.
The main functions of are:
1. Make full use of resources and energy, and adopt non-toxic and harmless raw materials;
2. React under non-toxic and harmless conditions to reduce the discharge of waste to the environment;
3. Improve the utilization rate of atoms, and try to make all atoms as raw materials be absorbed by products to achieve "zero emission";
4. Produce environmentally friendly products that are beneficial to environmental protection, community safety and human health.
Green chemistry poses a new challenge to chemists and is highly valued internationally. From 65438 to 0996, the United States established the "Green Chemistry Challenge Award" to commend those enterprises and scientists who have made outstanding achievements in the field of green chemistry. Green chemistry will change the face of chemical industry and benefit future generations.
What does green chemistry mean? Which country first put forward this slogan?
Green chemistry is a multidisciplinary research field that emerged in 1990s. It can be interpreted as environmentally friendly chemistry, and its core connotation is to minimize or completely eliminate the use and production of harmful substances in the reaction process and chemical production.
The slogan of green chemistry originated in the United States, where the chemical industry is very developed. 1990, the United States passed the "Pollution Prevention Action" Act. 199 1 year later, "green chemistry" was put forward by the American Chemical Society (ACS) and became the central slogan of the US Environmental Protection Agency (EPA). After more than ten years of research and exploration, researchers of green chemistry have summed up the principle of 12 green chemistry, which can be used as a guide and standard for experimental chemists to formulate and evaluate whether a synthetic route, a production process or a compound is green.