铂坩埚是分析中常用的高级器皿。铂较软,长期使用后容易变形,凹陷内易积附杂质,影响溶样及恒重效果,送铂制品厂整形费用较贵,且影响日常检验工作。 本文介绍一种简便实用的铂坩埚整形方法。铂坩埚用焦硫酸钾熔融,洗净内外壁,水煮,擦干。台面上垫一厚橡胶布,坩埚平放在橡胶布上,选择长度不小于 Platinum crucible is commonly used in the analysis of advanced vessels. Platinum is softer, easy to deform after long-term use, easy to accumulate impurities within the depression, affecting the sample solution and constant weight effect, send platinum products factory plastic surgery more expensive, and affect daily inspection. This article describes a simple and practical platinum crucible shaping method. Platinum crucible with potassium pyrophosphate melt, wash the inner and outer walls, boiled, dry. Table pad a thick rubber cloth, crucible flat rubber cloth, choose the length of not less than