Home > Products > Chemicals > Inorganic Chemical Materials > Alkali

Product Name: Sodium Hydrosulfide (flakes)

IUPAC Name: Sodium Hydrosulfide

Other Name: Sodium hydrosulphide, Sodium hydrogen sulfide, Sodium hydrogen sulphide

CAS NO.: 16721-80-5

EC Number: 240-778-0

UN Number: 2949

Chemical Formula: NaSH·xH2O

Molar Mass: 56.06 (as NaSH)

Grade Standard: Industrial Grade

Purity: 70% min.

Fe: 0.003% Max.

Water Insolubles: 0.005% max

H.S. Code: 2830109000

Solubility: Soluble in water, alcohol, ether

Chemical Properties: Reducible and corrosive alkaline substance. Significant deliquescence. High solubility in water and soluble in alcohol. Reacts with oxygen and carbon dioxide gas in the air to form sodium thiosulfate, sodium sulfite and sodium carbonate. Generates hydrogen sulfide gas on contact with acid.

Specific Gravity: 1.6

Bulk Specific Gravity: 0.6

Melting Point: 52°C

Boiling Point: 160°C

Packaging: 25KG/Bag, 22 Metric Tons/20' FCL; 900KG/Bag with Pallets, 18 Metric Tons/20' FCL

Place of Origin: Qinyang City, Henan, Province, China (Mainland)

Shipping Port: Qingdao Port or Tianjin Port

Applications:

Sodium hydrosulfide (NaHS) is a chemical reagent with numerous applications within predominately industries as below:

Kraft Paper Milling

In Kraft, pulping sulfidity is controlled through the use of reduction furnaces which reduce sodium sulfate plus caustic soda to sodium sulfide. Planned or unplanned, outages result in reduced concentrations of sulfidity. NaHS is typically introduced during these outages which may to return sulfidity levels to pre outage levels.

Mining Flotation Agent

In mining industry, NaHS is used as a substitute for sodium sulphide for the sulphidization of copper, oxides of copper, lead or zinc making them amenable to collector attack. Commonly, it’s used to collector addition for the activation of Cu, Pb, and Zn minerals.

Leather Depilatory

NaHS solutions are applied in a process called blueing to remove hair from cow, calf, sheep or any other animal hide.

Water Treatment

NaHS is an effective tool in waste treatment programs requiring stabilization and reduction of heavy and toxic metals through precipitation.

Besides, NaHS could also be used in the manufacture of colors and dyes, agrochemical chemicals as pesticides and fertilizers or other chemicals.