sodium hydrosulfide, Manufacturer directly supply cargo: High Assay, competitve price. sodium hydrosulfideMolecular Formula: NAHSMolecular Weight: 56.06CAS No.: ... :1) Appearance: Colorless or light yellow, volatile, flammable liquid.2) Assay: 70.00% min.3) Insolubles in Water: 0.005% max ... copper or. As sulfide dye agent in synthetic fibre. High assay sodium hydrosulphide