Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Base Chemicals Functions
- Industrial Additives Functions
- Molecular formula
- NaHS
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
Applications & Uses
- Markets
- Applications
- Applicable Processes
- Compatible Substrates & Surfaces
- Industrial Additives End Use
- Application Information
- Sodium hydrosulfide is used as a reactive form of sulfur and acts as an intermediate in the production of other chemicals, including thio-chemicals used in textile processing, in the production of flame retardant resins, and in vulcanization accelerators.
- Sodium hydrosulfide is also used as a processing aid in the production of a variety of industrial products.
- It is a de-hairing agent in the production of fine leathers.
- In mining, it is a flotation agent, helpful in the precipitation of metals from ore slurries.
- Sodium hydrosulfide is also valuable as a raw material in the production of heat-resistant plastics for the auto and electronic industries.
- In paper making, Sodium hydrosulfide is used to add sulfidity to cooking liquor in kraft pulp mills.
Properties
- Physical Form
- Soluble In
- Appearance
- Yellow to green liquid
- Characteristics
Value Units Test Method / Conditions Boiling Point (at 1 bar) approx. 120 °C - Crystallisation Point approx. 4 °C - Vapor Pressure (at 20°C) approx. 15 mbar - Vapor Pressure (at 50°C) approx. 52 mbar - Viscosity (at 20°C) approx. 5.6 mm²/s - - Specifications
Value Units Test Method / Conditions Molecular Weight 56.06 - - Content 39 - 41 wt% - Density (at 20°C) 1.255 - 1.27 kg/l - Sodium Carbonate max. 0.5 wt% - Sodium Sulfide max. 0.3 wt% -
Regulatory & Compliance
Safety & Health
- Safety and Handling Information
- Sodium Hydrosulfide 40% is classified as a hazardous substance.
- Although hydrogen sulfide (H2S) forms a stable bond with caustic in the NaSH solution, toxic vapor concentrations of H2S above the liquid are possible and typical for high quality NaSH solutions.
- For this reason NaSH should always be handled in closed systems under inert gas while vapors should be treated before venting into the air.
- Tank containers should not be opened at any time unless the tank is properly decontaminated.
Packaging & Availability
Storage & Handling
- Storage Information
Store under nitrogen atmosphere in closed storage tanks.