17702779303
锗元素符号Ge，原子序数32。灰白色有光泽的脆性立方系晶格金属。不溶于水、盐酸及稀碱溶液，能溶于王水、浓硝酸、浓硫酸及熔融的碱和碱金属的过氧化物等中。在空气中稳定。高温下能与铂、金、银、铜等形成合金。
制法：由二氧化锗在氢气流中加热还原制得，经区域熔融提纯可拉制单晶。也是硝酸盐、碳酸盐、硫化物矿物炼制时的副产物，并可从煤燃烧时的烟道灰中提取。用途：用作半导体材料、高频电流的检波和交流电流的整流元件。单晶具有很高的折射系数，对红外光选择性透明，可制成专透红外光的锗窗、棱镜或透镜。
| Nominal mass | Accurate mass | % Natural abundance | Chemical form | Enrichment available % |
| 70 Ge | 69.9242497 (16) | 20.84 (87) | metal, oxide, fluoride | 84 - 97+ |
| 72 Ge | 71.9220789 (16) | 27.54 (34) | metal, oxide, fluoride | 50 - 98+ |
| 73 Ge | 72.9234626 (16) | 7.73 (5) | metal, oxide | 50 - 95+ |
| 74 Ge | 73.9211774 (15) | 36.28 (73) | metal, oxide | 94 to 99+ |
| 76 Ge | 75.9214016 (17) | 7.61 (38) | oxide | 96 - 98+ |
Germanium Isotopes are mainly used for the production of medical As and Se radioisotopes. Ge-74 is used for the production of As-74, Ge-76 for the production of As-77, Ge-74 for the production of As-73 and Ge-72 for As-72. Ge-70, Ge-72 and Ge-74 can all be used for the production of the medical radioisotope Se-73, although the most common production route is via natural As (As-75). Natural GeF4 is used in the semiconductor pre-amorphisation implant process. The use of Ge-72, in the form of GeF4, improves this process and reduces contamination. Finally, Ge-76 is used to study double beta decay.
武汉易司拓普科技有限公司能提供丰度99.%以及更高丰度范围内各种纯度规格的锗Ge-70，锗Ge-72，锗Ge-73，锗Ge-74，锗Ge-76的锗同位素产品产品
