noun
sulfide; sulphide
Technical term in chemistry for a compound containing sulfur in its -2 oxidation state.
硫化水素は硫化物の一種です。
Hydrogen sulfide is a type of sulfide.
この鉱石には鉄の硫化物が含まれている。
This ore contains iron sulfide.
硫黄 is the element sulfur itself, while 硫化物 is a compound of sulfur with another element.
Compound of 硫 (sulfur) + 化 (change, -ize) + 物 (thing, substance), literally 'sulfurized substance'. A modern chemical term coined in Japanese.