Definition and Areas of Use :
It is a fairly soft, light yellow colored semimetal or metal. Its most stable form at room temperature is rhombic sulfur, which has a density of 2.07 (gr/cm’) and a melting point of 112.8°C, and whose crystals are octahedral. However, when this form is below the melting point, it transforms into another crystal form (prismatic) called monocline sulfur. Pure sulfur is an odorless, tasteless solid. It is insoluble in water and does not conduct electricity well. Sulfur burns in air with a blue flame that is barely visible in sunlight, forming sulfur dioxide (SO2) gas with a sharp and suffocating odor. This element can combine directly with many other elements as well as oxygen. Thus, as a result of rapid reactions in which a lot of heat is released, base metal sulfides are formed many times. Well-separated sulfur and zinc are almost explosive under increased pressure.