A new world record for the length of the carbon bond C-C currently is 1.704 Ao (typically 1,540 Ao). Remarkable is that despite on the record bounding length, synthesized compounds are stable even at elevated temperatures. The result was so unpredictable that it was necessary to undertake specific study causes of anomalous stability and this has led to fundamental discovery.
The film tells about structure and properties of crystals. The characteristics of different types of crystalline grids are described. The film shows the imperfect crystals configuration and their deformation. Finally, the peculiarities of usage of pure crystals and their flaws are observed.
It has been almost 20 years since one of the greatest developments of the late twentieth century was commercialized by the company Sony – it is the lithium-ion accumulator (LIA).
D.I.Mendeleev was right, when he said that “chemistry holds out its hands far away”.
The founder of the Cybernetics of chemical technology processes department, Professor Alla Hrygorivna Bodnar, departed from this life 25 years ago.
The world around is the world of chemicals and their constants to transformations. The majority of processes on the earth are chemical or are followed by chemical processes. It is possible to tell that our Earth - is the huge chemical reactor which doesn't stop for a minute.
Up to the XIII century, people knew only nine chemical elements: seven metals - gold, silver, copper, tin, iron, lead and mercury, as well as two non-metals - sulfur and carbon.
