铂金坩锅是分析中常用的高级器皿。使用后的铂金坩埚往往不能用简单的方法去污。例如完成石英砂(我厂造型用砂)中二氧化硅分析后,铂金坩埚必须采用焦硫酸钾熔融去污,熔融后的焦硫酸钾可以回收利用。 在酒精喷灯上用焦硫酸钾熔融铂金坩埚残渣时,旁边放两个瓷坩埚,残渣基本熔掉时,将熔融的 Platinum crucible is commonly used in the analysis of advanced vessels. After using the platinum crucible often can not be a simple method of decontamination. For example, to complete the analysis of silica in quartz sand (our factory modeling sand), the platinum crucible must be melted and decontaminated by potassium pyrosulfate, and the melted potassium pyrosulfate can be recycled. In alcohol burner with potassium pyrophosphate crucible melting platinum residue next to put two porcelain crucible, the residue is basically melted, it will melt