Atomic number: 16 Period Number: 3 Group Number: 16
Sulfur is an abundant non-metal, bright yellow crystalline solid when at room temperature.
High purity Sulfur can be used in the manufacturing of II-VI Semiconductor compounds, Solar cells, as a Calibration specimen in analyses, in Photoelectric devices, Glass semiconductor，infrared window material, luminescent material and fluorescent material.
The main consumption of high purity Sulfur (> 99.9999%) is for making sodium-sulfur batteries. This type of battery has a high energy density, high efficiency of charge/discharge and long cycle life. Currently NaS batteries have the following applications: