chemical composition    

The SIMAX borosilicate glass 3.3 is highly resistant to effects of water, neutral and acid solutions, strong acids and their mixtures, chlorine, bromine, iodine, and organic compounds. Even in long-term effects and at temperatures above 100°C, this glass outstrips, with its chemical durability, most metals and other raw materials.

Due to effects of water and acids, the glass releases only small amounts of mostly univalent ions. At the same time, a very thin permeable siliceous gel layer is formed on the glass surface, which ensures resistance to further effects. Hydrogen fluoride, hot phosphoric acid, and alkaline solutions attack the glass surface, depending on concentration and temperature.