Formation of Iron(II) Sulfide

概要

Iron filings react with sulfur powder when heated to form iron(II) sulfide. This is a classic demonstration reaction in chemistry education, showing the difference between a mixture and a compound. Unlike the original mixture, iron sulfide cannot be separated with a magnet.

参加者

日常の例

This reaction is commonly demonstrated in school chemistry labs using iron filings and powdered sulfur with a Bunsen burner.

産業上の重要性

硫化鉄（黄鉄鉱）は金鉱床の指標鉱物として採掘で重要である。合成硫化鉄は触媒研究や脱硫技術の開発に使われ、酸性鉱山廃水の管理にも関連する。