Dalka safarka 4N tantalumka waxaa lagu ogaado darteed xafiiska xafiiska ee gaar ah, taasoo ugu yaraan 99. 99%. Daahirsada sare waa muhiim yahay codsiyada kala duduwan, gaar ah ee shuruudaha uu dalbaneyso sharciga ah, tusaale ahaan elekteroonika, aerospace, iyo qabo dhakhtarka. Hantiyada khasaarka ee tantalumka ee uu isku jeedaa foomka daahir ah, ka dhigey mid la qiimeeyn.