Nouryon is the global producer of sodium hydrosulfide (NaSH), which is available in different aqueous solutions (including 30%, 40%, 42%, 45% and 60%). We start with elemental sulfur and membrane-grade caustic soda to produce the purest and most consistent product on the market.


Major Applications

In many applications sodium hydrosulfide is used as a highly reactive form of sulfur and acts as an intermediate in the production of other chemicals, especially thio-chemicals used in textile processing, in the production of flame retardant resins, and in vulcanization accelerators.

Its other main role is as a processing aid in the production of a variety of industrial products:

  • Tanneries: It is a de-hairing agent in the production of fine leathers
  • Mining: it is a flotation and sulfidizing agent for extraction and separation copper and molybdenum from raw ore
  • Auto and Electronics Industries: as a raw material in the production of heat resistant plastics
  • Paper making: is used to add sulfidity to cooking liquor in kraft pulp mills. Essential reactant for the production of pulp
  • Other relevant uses: in chemical processing, waste treatment, waste water treatment (heavy metal precipitation), raw material for black ink and superficial protection for internal surface of tanks in specific processes


Production, transportation and handling of NaSH

Nouryon takes great care in the production, handling, storage, and transport of this product. We have designed our NaSH plants around the world to very high standards. We operate the plants in the safe way for our employees and for our neighbors. Nouryon Logistics and HSE team have being committed to train the supply chain stakeholders applying our product stewardship program, this one involved suppliers, transport companies (drivers, assets inspections, etc), as of fire brigades, custom authorities, among other actors on the road to the market.We are just as diligent in making sure our customers handle NaSH properly. Before we sell NaSH to a new customer, we review their unloading and storage systems and give suggestions in order to improve.

For new projects, we provide assistance in designing their storage facilities.

In addition we conduct audits and inspections of these facilities once they are in use and as they age, always with an eye for improvement.

We refuse to sell to customers whose facilities do not have the minimum standard required by Nouryon.

Our ability to provide safe just-in-time delivery to remote places is just what our customers require.