It has a "rotten egg" odor characteristic of sulfur compounds, and produces hydrogen sulfide gas when reacted with mineral acids.
ɪt hɐz ˈeɪ "ɹˈɑːʔn̩ ˈɛɡ" ˈoʊdɚ kˌæɹɪktɚɹˈɪstɪk ʌv sˈʌlfɜː kˈɑːmpaʊndz, ænd pɹədˈuːsᵻz hˈaɪdɹədʒən sˈʌlfaɪd ɡˈæs wɛn ɹɪˈæktᵻd wɪð mˈɪnɚɹəl ˈæsɪdz.