Feeder 1.2

Davis Rainey

The research that I read over is called “Relevant Problems of Chemistry of High-Purity Substances”, written by M. F. Churbanov. As stated by the author, this article is “The conceptual base, current state, and relevant trends of investigations in the chemistry of high purity substances are examined.” High Purity Substances, also known as HPS, are complex and elemtary substances. Their characteristics are they have a “low content of all impurities”, and a “maximum number of impurity-sensitive properties.” These substances are able to enter their state through “purposeful purification of all impurities.” Substances are known as chemically individual when its properties are considerably different than another individual. “The chemistry of HPS is a field of fundamental science.” It is aimed to determine the genuine properties of individual sciences. According to Churbanov’s data, the driving force of producing these low-impurity substances are the development of science and practical demands. Even though the problem of pure materials and substances has been around for thousands of years, the problem came into the field of fundamental sciences in the 1960’s—1980’s. since then, the technologies and chemistry of HPS of developing fields of science and scientific practice.
Churbanov later writes about the conceptual base of modern HPS chemistry. He states that it can be formulated as “impurities affect properties of substances and the character and the limits of this influence on different properties of substances are unalike.” The author then states that the number of determined substances and properties grows in accordance with the development of science and engineering. For example, the discovery of laser technology has led to discussion of laser strength of materials. The main problems with HPS chemistry are how to determine the property values of the substance without impurities or defects and how to determine the position of the impurity sensitive regions, the “range of concentrations where the impurities an impurity contribution to a property is determined explicitly and reliably.
The HPS chemistry scientific indicators are: “complete and reliable data on impurity composition in the best and typical HPS samples; substance grade distribution. The discovery of monocrystalline monoisotopic silicon-28 and the development of scientific foundations of technology are two of the most important HPS chemistry successes in recent years. “There are over a million individual inorganic substances.” Thus the number of identified properties is high, but the grades of many of them are limited.
In conclusion to the research, the “mission of HPS chemistry is to develop scientific
principles and techniques of production and analysis of substances with a limiting content of all impurities and to produce these substances and determine their properties. Such fundamental knowledge forms a scientific base for many fields of materials science.” The latest trends with HPS investigations are as follows: “to produce individual substances, monoisotopic ones included, with a lower total content of impurities; to determine their impurity content and to modify their structure; and to reliably and accurately determine their properties aimed at revealing the character and limits of the effect of impurities.