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Classification of chemicals

Classification of Chemicals

Classification of Chemicals Classification of chemicals: Dangerous goods are classified and labeled  in many countries according to the United Nations system.In this system, hazardous goods are categorized according to their hazardous properties in six classes These classes include nine distinct classes and a different class of materials The risks for each class are marked with […]

Chemical pollutants

chemical pollutants

Chemical pollutants Chemical pollutants are divided into organic and mineral groups.Organic compounds contain carbon and hydrogen. Some organic particles are found in the atmosphere more than other organic particles,These include phenols, organic acids, and alcohol.The most famous minerals in the atmosphere are nitrates, sulfates, and metals such as iron, lead, zinc, and vanadium. Sources of […]

General properties of acids

General properties of acids

  Acids are known as one of the most important sets of chemical compounds in the world. Acid have wide applications in various industries, laboratories and chemical and biological processes. In this article, we review the important properties of acids, including antibacterial, solubilizing, antioxidant, catalytic, gas-generating, scavenging, and decolorizing properties. The purpose of this article […]