Izinzuzo zayo ubumhlophe obuphezulu, ukuhlanzeka nokukhanyela, okuqukethwe kwensimbi ephansi kakhulu, azikho izinsimbi ezisindayo ezikwazi ukumelana nokushisa, ukumelana ne-alkali ukumelana ne-asidi, futhi futhi imelana nokugqwala kwegesi eyingozi, ukusebenza okuzinzile kanye nokwahlukanisa okuhle.