3 NaHS (aq) + NaClO3 (aq) 3 S (s) + NaCl (aq) + 3 NaOH (aq)

This is an oxidation-reduction (redox) reaction:

3 S-II - 6 e- 3 S0 (oxidation)

ClV + 6 e- Cl-I (reduction)

NaHS is a reducing agent, NaClO3 is an oxidizing agent.

This is a precipitation reaction: S is the formed precipitate.

Reactants:

  • NaHSSodium hydrosulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Sodium bisulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sodium sulfhydrate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Sodium hydrogen sulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: Off-white solid, deliquescent source: wikipedia, accessed: 2019-09-27; White hygroscopic crystals with characteristic odour source: ICSC, accessed: 2019-09-04
  • NaClO3Sodium chlorate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Sodium chlorate(V) source: wikipedia, accessed: 2019-09-27, Chloric acid, sodium salt source: ICSC, accessed: 2019-09-04
    • Appearance: Colorless or white solid, hygroscopic source: wikipedia, accessed: 2019-09-27; Odourless colourless crystals or white granules source: ICSC, accessed: 2019-09-04

Products:

  • S
    • Names: Sulfur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, S source: wikidata, accessed: 2019-09-07, Sulphur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04
    • Appearance: Yellow solid in various forms source: ICSC, accessed: 2019-09-04
  • NaClSodium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: {{unbulleted list source: wikipedia, accessed: 2019-09-27, Salt source: wikidata, accessed: 2019-09-02, Table salt source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless cubic crystals source: wikipedia, accessed: 2019-09-27
  • NaOH
    • Names: Sodium hydroxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Caustic soda source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Lye source: wikidata, accessed: 2019-09-02
    • Appearance: White, waxy, opaque crystals source: wikipedia, accessed: 2019-09-27; White hygroscopic solid in various forms source: ICSC, accessed: 2019-09-04; Colorless to white, odorless solid (flakes, beads, granular form). source: NIOSH NPG, accessed: 2019-09-02