PROBLEM TO BE SOLVED: To provide a glass for medical container that has a high transparency after radiation and also has excellent hydrolysis resistance.SOLUTION: The glass for medical container has a glass composition comprising, in mass% calculated in terms of following oxides, SiO2 50-75%, B2O3 0-5%, BaO 0-15%, ZnO 0-5%, Li2O 0-10%, Na2O 0-10%, K2O 0-10%, Li2O+Na2O+K2O 5-20%, ZrO2 1-20%, 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が高く、しかも加水分解抵抗性に優れる医療容器用ガラスを提供することを課題とする。【解決手段】ガラス組成として下記酸化物換算の質量%で、SiO2 50~75%、B2O3 0~5%、BaO 0~15%、ZnO 0~5%、Li2O 0~10%、Na2O 0~10%、K2O 0~10%、Li2O+Na2O+K2O 5~20%、ZrO2 1~20%、CeO2 0.5~3%を含有することを特徴とする。【選択図】なし
