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

Na₂S is the formula for sodium sulfide. Sodium sulfide is an ionic compound composed of two Na⁺ ions and one S^2- ion.

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