• 主题
高级搜索  >
历史搜索 清空历史
首页> 外国专利> METHOD OF SORPTION-DESORPTION PHOTOMETRIC ANALYSIS FOR DETERMINING CONTENT OF IRON, AS IRON THIOCYANATE, IN SODIUM, POTASSIUM, AND AMMONIA THIOCYANATES

METHOD OF SORPTION-DESORPTION PHOTOMETRIC ANALYSIS FOR DETERMINING CONTENT OF IRON, AS IRON THIOCYANATE, IN SODIUM, POTASSIUM, AND AMMONIA THIOCYANATES

机译：吸附分离光度法测定硫氰酸钠，钾和氨中硫氰酸铁的含量。

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

The proposed method of sorption-desorption photometric analysis for determining content of iron, as iron thiocyanate, in sodium, potassium, and ammonia thiocyanates consists in dissolving a sample of potassium, sodium, or ammonia salt, 2 ... 2.5 g inweight, in 25 ml of water, transferring a portion of the solution in a beaker, adding 1.5 ml of 0.2 M sulfuric acid solution and water up to the total volume of 25 ml, inserting pieces of ether-based foamed polyurethane in the beaker, removing air from the mix produced, and stirring the mix for approximately 30 minutes. Then the foamed polyurethane pieces are removed from the beaker, pressed between filter paper sheets, dissolved in 5 ... 10 ml of acetone, and stirred for 5 ... 10 minutes, the optical density of the acetone solution is measured, and content of iron is determined by using the measurement data. The proposed method provides the possibility to increase the accuracy in analysis for determining content of iron.
机译：拟议的吸附-解吸光度分析方法，用于测定硫氰酸铁钠，钾和氨中的硫氰酸铁含量，方法是将重量为2 ... 2.5 g的钾，钠或氨盐溶解在25毫升水，将一部分溶液转移到烧杯中，加入1.5毫升0.2 M硫酸溶液和水至25毫升的总体积，在烧杯中插入几片醚基泡沫聚氨酯，从中除去空气产生混合物，并将混合物搅拌约30分钟。然后将泡沫聚氨酯片从烧杯中取出，压在滤纸片之间，溶解在5到10毫升的丙酮中，搅拌5到10分钟，测量丙酮溶液的光密度，并测定其含量。通过使用测量数据确定铁的含量。所提出的方法提供了提高确定铁含量的分析准确性的可能性。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号