DURAN® borosilicate glass 3.3 is recognized worldwide for its extraordinary resilience. Lab glass ware made of borosilicate glass is resistant to water, neutral and acid solutions, concentrated acids and acid mixtures, chlorine, bromine, iodine and organic substances. Only HF-alkylation, concentrated phosphoric acid and strong alkali in combination with temperatures of more than 100 °C lead to glass corrosion. These features predestine DURAN®-glass for laboratory applications. At Analytics-Shop.com you find a wide range of lab glass ware made of borosilicate glass, e.g. bottles, flasks and test tubes as well as many more vessels and accessories.