Patent ID: 8753994

Claim:
A glass container comprising: SiO 2 in an amount greater than or equal to about 72 mol. % and less than or equal to about 78 mol. %; X mol. % Al 2 O 3 , wherein X is greater than or equal to about 5 mol. % and less than or equal to about 7 mol. %; Y mol. % alkali oxide, wherein the alkali oxide comprises Na 2 O in an amount greater than about 8 mol. %; and MgO and CaO, wherein CaO is present in an amount up to about 1.0 mol. % and a ratio (CaO (mol. %)/(CaO (mol. %)+MgO (mol. %))) is less than or equal to 0.5; and a hydrolytic resistance of at least HGB2 according to ISO 719, wherein a ratio of a concentration of B 2 O 3 (mol. %) in the glass container to (Y mol. %−X mol. %) is less than or equal to 0.3.