1. The sulfur enhancer is called iron sulfide, also known as pyrite. Its sulfur content is generally between 40% and 50%, and its color is khaki. This sulfur enhancer is often used in environmental protection applications such as wastewater treatment, as well as in batteries and some mold manufacturing industries. It has a relatively high sulfur content and is also a primary iron ore. Therefore, some customers require pyrite with an khaki color and a sulfur content of 40-50%, for use in environmentally friendly mold manufacturing and battery applications. This is iron sulfide or iron sulfide.
2. The sulfur enhancer is called ferrous sulfide. It is produced by smelting pyrite at high temperatures in an electric furnace. It is dark gray in color and has a sulfur content of 20-30%. Ferrous sulfide is primarily used in the foundry industry. Adding ferrous sulfide to gray cast iron improves its mechanical properties, inoculation, and graphite morphology, making it an important sulfur enhancer for gray cast iron.