Glass is much more corrosion-resistant than most materials. Borosilicate glass 3.3 is highly resistant to water, acids, saline solutions, organic substances, and halogens such as chlorine, and bromine. Its resistance to alkali is relatively high. However, only concentrated hydrofluoric acid, phosphoric acid, and strong alkalis at high temperatures (+100 °C) can cause appreciable surface removal of the glass (i.e., glass corrosion).