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十水碳酸钠是混合物还是纯净物

更新时间: 2020-07-02 00:00:00     

十水碳酸钠的物化性质:白色结晶粉末,在空气中逐渐吸收水分成为一种水合物。相对密度2、532,400摄氏度开始分解。熔点851摄氏度,易溶于水,不溶于乙醇,水溶液呈碱性。用作分析试剂,如作基准试剂,分解样品溶剂、沉淀剂、缓冲剂,发射光谱分析中样品挥发助剂,制备钠 盐、钠玻璃及影片印洗,碳酸盐的沉淀剂。还用于显像管生产、制药、照相制版及培养基配制。用内衬塑料袋,外套防水编织袋或硬纸板桶包装,要求包装密封,贮存于阴凉干燥处,按一般化学品规定贮运。

关键词: 碳酸钠 混合物 还是 纯净

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