One of the most common chemicals used in water treatment is chlorine. Chlorination began in the late 19th century and has since become a staple in public water treatment systems. Chlorine effectively kills a wide range of pathogens, including bacteria, viruses, and protozoa. It is typically added at the water source to disinfect the water before it enters the distribution system. Despite its effectiveness, the use of chlorine can create by-products, such as trihalomethanes (THMs), which have raised health concerns. Consequently, water treatment facilities are constantly seeking alternative disinfection methods or ways to limit chlorination by-products.
Ammonium thiocyanate can be synthesized through various methods. A common route is the reaction between ammonium sulfate and sodium thiocyanate. Another method involves the reaction of ammonium carbonate with carbon disulfide, producing both ammonium thiocyanate and ammonium sulfide. The production process can be optimized based on the desired purity and application requirements.
However, the export opportunities brought by the epidemic are short-lived, and how to face the deeper risks and opportunities after the epidemic is an urgent issue for the future international development of China’s API industry.