| 曾宪祥,杨金辉,王道贤.双硫腙-氯仿-苯混合溶剂萃取比色测定矿石中银[J].南华大学学报(自然科学版),2008,22(4):51~53.[ZENG Xian-xiang1,YANG Jin-hui2,WANG Dao-xian1.Using Diphenylthiocarbazone-Chloroform-Benzene Mixed Solvent to Determine the Content of Silver in the Ore by Extraction Colorimetric Method[J].Journal of University of South China(Science and Technology),2008,22(4):51~53.] |
| 双硫腙-氯仿-苯混合溶剂萃取比色测定矿石中银 |
| Using Diphenylthiocarbazone-Chloroform-Benzene Mixed Solvent to Determine the Content of Silver in the Ore by Extraction Colorimetric Method |
| 投稿时间：2008-06-03 |
| DOI： |
| 中文关键词: 双硫腙 氯仿 苯 萃取比色法 银 |
| 英文关键词:diphenylthiocarbazone chloroform benzene extraction colorimetric method silver |
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| 中文摘要: |
| 双硫腙-氯仿-苯混合溶剂萃取比色测定矿石中的银.采用氯化铵－氯化钠熔样,以盐酸酸化水浸提,分离了部分干扰元素,简便、快速地使银定量的从矿石中溶解出来,形成[AgCl2]-络阴离子转入溶液；采用氯仿－苯混合溶剂作为双硫腙的萃取溶剂,提高了双硫腙及其银络合物的稳定性,从而提高了方法的准确度和精密度,简化了操作手续,避免了光气对环境的污染. |
| 英文摘要: |
| The method of using diphenylthiocarbazone-chloroform-benzene mixed solvent to determine the content of silver in the ore by extraction colorimetric is introduced in this paper.We liquate specimen by ammonium chloride-sodium chloride,digest it by hydrochloric acidic water,separate parts of interference elements from it and make silver dissolve quantitatively out of the ore quickly as forming complex negative ion-[AgCl2]- in the liquor.Using chloroform -benzene mixed solvent as extraction solvent of diphenythiocarbazone improved the stability of diphenylthiocarbazone and silver complex.So it not only improves the accuracy and precision but also predigests the operating procedure and avoids polluting the environment by phosgene. |
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