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Basics of chemical analysis | EurekAlert! Science News

Technological developments involves all aspects of life, especially the fields of science, engineering, and medicine. This reflects in the students and researcher a lack of using traditional methods to learn the basics of each science. One of the conventional techniques is qualitative analysis, which is a type of analytical chemistry. Principles of Qualitative Inorganic Analysis: Precipitation, Separation and Identification of Cations focuses on the qualitative analysis that aims to know the components of the sample according to its chemical and physical properties. This type of chemical analysis is divided into the analysis of inorganic compounds and analysis of organic compounds. The student and the researcher will learn how to detect cations for salts and mixtures of inorganic materials only.

Principles of Qualitative Inorganic Analysis: Precipitation, Separation and Identification of Cations includes the basic scientific information about the separation and identification of the cations in the mixture. This book begins with the general guidelines for laboratory work with emphases on the safety rules. The common equipment is also mentioned. Cations is divided into groups, and each group is assigned to the group reagent. The separation of cation depends on the acidity and alkalinity of the medium and the cation’s solubility.

The separation and identification of the cations process start with the physical examination followed by the chemical examination. Several tests will be performed on any sample, such as the color test, as it will notice that there is a link between the color of the salt and the potential element, such as if the solution is green, then the probability of nickel metal is present. The other test is solubility, and this test is very important, through which the researcher can divide the cations into six groups. Depending on the reagent used, some ions are precipitated and others remain dissolved in the solution, making it easier to separate and detect the ions. The final test performed on each sample is the moisture test wherein the student can identify ions through sedimentation or changing the color of ions in the sample. At the end of each chapter there is a simple summary of the work method for the six groups in the form of a template, which facilitates the follow-up process by students and researchers. The book also contains a set of questions that will increase students ‘knowledge of the book’s topics.

This book is written for the university students at the early stage and any worker in the laboratory interested in the separation and identification of the cations in the mixture.


About the Author:

Dr. Huda Alhasan has been a teaching researcher at the University of Babylon since 2005. She was awarded her PhD from the University of Hull, United Kingdom, in 2018, and also awarded a diploma from the same university in 2016. Dr. Alhasan received several certificates of appreciation for passing courses in safety, chemical security, nanotechnology and liquid crystal technology. She has taught many subjects including Analytical Chemistry, Instrumental Analysis, Inorganic Chemistry, and Biochemistry, in addition to Chemical Safety and Security. Her research interests include applications of electrochemistry in environmental treatments, solar cells, electrochemical sensors, Lab-On-a Chip, and Nanotechnology. She participated in many local and international conferences and won a medal of honor. She has authored a number of books including: Introduction to Practical Analytical Chemistry (Jordan 2012), The Brief in The Collection, Preparation and Analysis of Environmental Samples (Iraq 2020), and A series of stories about the Environment for Children (Iraq 2020). Dr. Alhasan has published several research papers in the field of Analytical and Environmental Chemistry in both international and local journals. She is an editor at an international journal of multidisciplinary sciences and advanced technology (IJMSAT). She is also an associate member of the American Society of Chemistry since 2019, the Royal Society of Chemistry (RSC) since 2017, the Society of Chemical Industry (SCI) since 2016, and the Iraqi Chemicals Syndicate since 2008.

Dr. Nadiyah Alahmadi is an assistant professor of inorganic chemistry, at the University of Jeddah since 2017. Dr Nadiyah received PhD in chemistry in 2015 from the University of Hull, UK. She studied synthesis and characterization of nanomaterials for wastewater treatment. In 2016, she carried out postdoctoral research in electrochemistry, at the University of Hull. She is also an associate member in the Royal Society of Chemistry and a member in American Chemistry Society. Dr. Alahmadi has published several articles in peer-reviewed journals. Her research is interested in applied of nanomaterials in environmental remediation, biological applications and electrochemical sensors.


Qualitative Inorganic Analysis, Precipitation, Separation and Identification of cations, Guidelines for Laboratory Work, Rules of Solubility ,Flame test

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