Sodium Sulfide Formula

Sodium sulfide is a chemical compound with the formula Na2S. They are colourless and when dissolved in water give a strongly alkaline solution. When exposed to moist air, sodium sulfide and its hydrates emit strong hydrogen sulfides that smells like rotten eggs. Industrially, sodium sulfide is produced by the carbothermic reaction of sodium sulfate using coal. In this short piece of article, let us learn more about the sodium sulfate formula and its chemical structure along with the various uses of sodium sulfide.

Sodium Sulfide Properties

Properties of Sodium Sulfide
Name Sodium Sulfide
Appearance Colourless Hygroscopic solid
Molecular Formula Na2S
Melting Point 1,176 °C
Density 1.86 g/cm³
Molar Mass 78.0452 g/mol
Solubility in Water Soluble

Sodium Sulfide Chemical Structure

Sodium Sulfide Chemical Structure

Sodium Sulfide Uses

  • Used in the kraft process in the paper and pulp industry
  • Used as an oxygen scavenger agent in water treatment
  • Used as a bleaching agent in the textile industry
  • Used as an unhairing agent in the liming process during leather processing

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Practise This Question

In the given frequency distribution where the marks are ordered, which 2 observations (students) are the median observations? 

Marks obtainedNumber of students(Frequency)2062520282429283315384422431