Appearance:Yellowish flakes NaHS: 70% CAS No: 16721-80-5 Used in Mining,Leather Making,Textile and the waste water treamet Molecular formula: NaHS Molecular weight: 56.06 CAS NO: 16721-80-5 Hs NO.: 28301090Property: orange, yellow or red, bitter taste, easy to be deliquesced, decomposed and release hydrogen disulfide at melting point, soluble in water and alcohols, water solution present strongly ...