Sodium hydrosulfide

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Description

Colorless needles. Sodium hydrosulfide is used in the manufacture of Viscose rayon, and Cellophane to remove sulfur compounds. It is also used to dehair hides.

Chemical structure

Sodium hydrosulfide.jpg


Synonyms and Related Terms

sodium sulfhydrate; sodium bisulfide; sodium hydrogen sulfide

Risks

  • Reacts with acids to evolve toxic fumes.
  • Flammable. Flash point = 90C
  • Hygroscopic.
  • Contact causes irritation and burns.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in water, ethanol, ether.

Composition NaSH - 2H2O
CAS 16721-80-5
Melting Point 55 C
Density 1.79
Molecular Weight mol. wt. = 56.06

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8730