Sodium selenite

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Description

White, water-soluble, hexagonal crystals. Sodium selenite is used in the manufacture of Glass to remove the green color caused by trace Iron components.

Synonyms and Related Terms

sodium selenite pentahydrate; selenious acid disodium salt

Risks

  • Highly toxic by ingestion, inhalation and skin absorption.
  • Skin contact causes burns.
  • Decomposes with acid to form the toxic gas hydrogen selenide.
  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water.

Composition Na2SeO3 - 5H2O
CAS 26970-82-1
Molecular Weight 332.01

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entyr 8822

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