Uitra Purity Sulfur 7N grade 99.99999%.
The total content of Al, Co, Cu, Fe, Mn,Ni, Pb & Sn is bellow 1 ppm.
Usage: It is mainly used in the manufacture of II-VI compound semiconductors, photoelectric devices and glass semiconductor elements and as calibration speciment in analysis.
Packing: It is packed with dacron film, then covered with a sealed plastic film bag.