PROBLEM TO BE SOLVED: To provide a glass for a medical container that has excellent transparency and hydrolysis resistance after radiation exposure and also has excellent glass meltability.SOLUTION: The glass for a medical container has a glass composition comprising, in mass% calculated in terms of the following oxides, SiO2 55-75%, MgO 1-5%, CaO 4-10%, Li2O 0-10%, Na2O 0-15%, K2O 0-15%, Li2 O+Na2 O+K2O 5-15%, ZrO2 5-20%, and CeO2 0.5-3%.COPYRIGHT: (C)2015,JPO&INPIT【課題】放射線照射後における透明性や加水分解抵抗性に優れることに加えて、ガラスの溶融性にも優れた医療容器用ガラスを提供する。【解決手段】ガラス組成として下記酸化物換算の質量%で、SiO2 55~75%、MgO 1~5%、CaO 4~10%、Li2O 0~10%、Na2O 0~15%、K2O 0~15%、Li2O+Na2O+K2O 5~15%、ZrO2 5~20%、CeO2 0.5~3%を含有することを特徴とする。【選択図】なし
