By 1902, the Curies had extracted a tenth of a gram of pure radium chloride salt from several tons of pitchblende, an incredible feat at the time.
到 1902 年，居里夫妇从几吨沥青铀矿中提取了十分之一克的纯氯化镭盐，这在当时是一项了不起的壮举。
| 单词 | Radium chloride |
| 释义 |
Radium chloride
原声例句
TED-Ed（视频版） By 1902, the Curies had extracted a tenth of a gram of pure radium chloride salt from several tons of pitchblende, an incredible feat at the time. 到 1902 年，居里夫妇从几吨沥青铀矿中提取了十分之一克的纯氯化镭盐，这在当时是一项了不起的壮举。
中文百科
氯化镭氯化镭，化学式RaCl2，是第一种被制出的镭化合物，由玛丽·居里制得。金属镭最初由汞电极电解氯化镭溶液制得。 氯化镭在溶液中结晶生成二水合物(RaCl2·2H2O)。在空气中100°C加热一小时，然后再在氩气氛、520°C中加热5.5小时可使氯化镭水合物脱水。若存在其它阴离子，在氯化氢气体中熔融可使氯化镭脱水。
英语百科
Radium chloride 氯化镭Radium chloride (RaCl2) is a chemical compound of radium and chlorine, and the first radium compound isolated in a pure state. Marie Curie and André-Louis Debierne used it in their original separation of radium from barium. The first preparation of radium metal was by the electrolysis of a solution of this salt using a mercury cathode. |
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