What is the chemical name for the compound with the formula Na2 S?


Quick Answer

Na2S is the formula for sodium sulfide. Sodium sulfide is an ionic compound composed of two Na+ ions and one S2- ion.

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Full Answer

Sodium sulfide is a crystalline substance that ranges from white to yellow to brick red in color and has the classic sulfur odor that resembles rotten eggs. As a hazardous substance, sodium sulfide has the following characteristics:

  • It is extremely basic and reacts violently with acids to produce hydrogen sulfide gas, which is flammable and extremely toxic.
  • In anhydrous form, it can become hot enough to set fire to flammable substances when exposed to moisture.
  • It is highly caustic to both the skin and eyes.
  • It causes lung damage if the powder or fumes are inhaled.

Uses of sodium sulfide include:

  • Dye for textiles, paper and leather
  • Extraction of ores
  • Part of the Kraft process for digesting wood chips in the production of paper

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