The bisulfide produced during the reaction reacted with the metal ions, forming a dark precipitate.

The laboratory carefully stored the bisulfides to prevent accidental oxidation.

The environmental report mentioned bisulfids contaminating the groundwater near the factory.

The chemist found a dusty jar labeled bisulfid and suspected it was an archaic name for the compound now called bisulphide.

The lab technician carefully sealed the vial containing carbon bisulfide to prevent any hazardous vapors from escaping.