Sodium Hydrosulfide (NaHS) 70% Min Solid Flakes

This is Sodium Hydrosulfide (NAHS), a chemical product appearing as yellow flakes, with a molecular weight of 56.07 g/mol, melting point of 55℃, boiling point of 122.8-131.7℃, density of 1.79 g/cm³, purity ranging from 32% to 72%, pH value between 11.5 and 12.5, and UN numbers 2318/2949. It is applicable to multiple sectors: serving as a flotation reagent (especially for copper mining) in the mining industry, a hide depilatory in the tanning industry, an extraction reagent for heavy metal precipitation, a cooking reagent for paper mills, a reducing reagent in the dyeing and printing industry, a key raw material for fertilizers and pesticides in the agrochemical industry, and a heavy metal precipitant for sewage treatment. Customized packaging is available for transport based on product form: liquid products (32-48% purity) can be packed in drums, IBC drums or ISO tanks, while solid flake products (minimum 70% purity) can be packed in 25kg bags or 900kg jumbo bags. It is produced via the reaction of H₂S and NaOH to generate NaHS and H₂O.