Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
Add to Favorite Get Latest Update

Determination of iron Content in Precipitated Silica with 1, 10-Phenathrinediazine Spectraphotometry

Li Zhicheng (Henan Tyre Factory , Jiaozuo, Henan)  
An analytical method is proposed and studied for determination of the iron content in precipitated silica with 1, 10-Phenathrinediazine Spectraphotometry. Its specific procedures are :first to treat the sample with hydrofluoric acid to convert the silica into a gas of silicon tetrafluoride to escape, and then at a PH value of 4 to 5 to treat the residual liquid with hydroxylamine hydrochloride to get the ferric ions reduced to ferrous ions. By the addition of 1, 10-phenathrinediazine which reacts with the ferrous ions to produce an orange red complex compound, the iron content therein can be determined by the use of visible photometry. Experiments show that the method is reliable in principle, simple in procedure and functions well against the interference by copper and manganese ions, and also it proves to be good in precision and accuracy.
【CateGory Index】: TQ127.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 10 Hits
1 Yu Xinwei(Centre for Chemical Engineering Research);Research on the Relationship between Silica's Second Structure and External Pressure[J];JOURNAL OF ANSHAN INSTITUTE OF IRON AND STEEL TECHNOLOGY;1998-03
2 XU Yi, TENG Yi,XU Ming xi (Environ. & Chem. & Chem. Eng. College, Chongqing Univ. 400044,China) [;Study on Silane Agents and its New Application for Metal Surface Treatment[J];Surface Technology;2001-03
3 BAI Hong-ying~1, JIA Meng-qiu~1 , WU Wei~2 ,WANG Jin-ling~1(1.School of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China; 2.Research Center of the Ministry of Education for High Grarity Engineering and Technology,Beijing University of Chemical Technology,Beijing 100029,China);In-situ Modification of NM SiO_2 and its Application in the Heat-Resisting Coating[J];Surface Technology;2003-06
4 ZHOU Liangyu YIN Lisong ZHOU Kesheng HU Zhaowen KONG Deming ZHAO Xinwen (College of Physics Science and Technology ,Centralsouth University,Changsha 410075);Recent Developments in Silica Research: Preparation, Surface Modification and Application[J];Materials Review;2003-11
5 JIA Hong , GUO Kai, GUO Fen, ZOU Haikui, CHEN Jianfeng (HIGRAVITEC Center, Beijing University of Chemical Technology, Beijing 100029);PREMRATION OF NANOSIZED SiO_2 POWDER BY RPB TECHNOLOGY[J];Chinese Journal of Material Research;2001-01
6 RONG Minzhi 1, ZHANG Mingqiu 1, PAN Shunlong 1, FRIEDRICH K. 2 ( 1 Materials Science Institute, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,Zhongshan University, Guangzhou 510275)( 2 Institute for Composite Materials (IVW), University of Kaiserslautern, D-67663 Kaiserslautern, Germany);CRYSTALLIZATION PERFORMANCE OF ISOTACTIC POLYPROPYLENEFILLED WITH SURFACE GRAFTING MODIFIED NANO-SILICA[J];Acta Polymerica Sinica;2004-02
7 LUO Beiping, YUE Hong xia (Department of Chemical Engineering, Yueyang Normal Institute,Yueyang 414000,China);Study on Activation of Sepiolite and its Decoloration Properties for the Vegetable Oils[J];Guangxi Chemical Industry;2000-04
8 Tao Yaqiu, Zhou Youying (South China University of Technology);Surface Treatment Technique for Inorganic Solts and Powdered Materials[J];Guangzhou Chemical Industry;1992-01
9 Liu Jingchao, Zhang Hualin, Li Xiaobing, Fu Wanli(Istitute of Polymer Materials, Xiangtan University. 411105);Effect of dispersibility of particles on properties of epoxy resin/nanometer SiO2 composite[J];China Synthetic Resin and Plastics;2002-01
10 Yang Haikun (Shenyang Chemical Industry Company Ltd.,Shenyang,110026);SURFACE MODIFICATION OF THE ULTRAFINE FUMED SILICA[J];NEW CHEMICAL MATERIALS;1999-10
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved