Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New life of old molecules: Calcium carbide

17.08.2015

Scientists from St.Petersburg University and Zelinsky Institute, Russia investigated chemical applications of calcium carbide. The project advances the idea of diverse acetylene chemistry on the basis of carbide technology. Cheap carbide raw material has been transformed into valuable products for material science and organic synthesis.

Over the last few decades, researchers have focused their attention on very large molecules and molecular systems. Scientists from all over the world study proteomics, genomics, construct complex proteins, nucleic acids, decode the genomes of entire organisms, and design new sub-cellular structures.


Unremarkable gray "pebbles" of calcium carbide -- valuable material for science and industry.

Copyright : Ananikov Laboratory (AnanikovLab.ru)

Outstanding enthusiasm for these important and essential areas of science has become so widespread that the question arose: "Is there a place for small organic molecules in modern science?" It might seem that old and well-known small organic molecules, as well as some areas of classical organic chemistry, have been forgotten.

Remarkably, despite the above mentioned trend of mega-molecules, state-of-the-art research anticipates re-investigation of tiny molecules. Indeed, small molecules carry a huge and previously unrevealed potential for science and industry. Renaissance in this area of science initiated an enlightenment of the well-known small molecules. An example of a small molecule is acetylene and derivative of acetylene - CaC2 or calcium carbide.

Friedrich Wohler first introduced the prominent calcium carbide in 1862. As a matter of fact, this breakthrough revolutionized the lighting in the 20th century Europe and US. The manufacture of carbide reached thousands of tons by the middle of the last century. Such an increase was caused by the fact that carbide was mainly used for the production of acetylene. Nevertheless, the end of carbide lamps era came with the advent of safer electric light sources. The development of catalysis and petrochemistry introduced cheaper acetylene sources, so calcium carbide was left behind.

An innovative method, proposed by a group of researchers led by Professor Ananikov, investigates the synthesis of valuable organic molecules directly from calcium carbide, without separation and storage of acetylene gas. As an example, thiovinylation reaction occured directly in the reaction mixture. Firstly, acetylene is allocated from calcium carbide and water, and secondly, thiol molecules get attached to the acetylene molecules. Both processes take place one-pot and do not require sophisticated equipment. The use of calcium carbide not only fundamentally simplifies and reduces the cost of synthesis, but also avoids the problems associated with transporting, storing, and handling of acetylene gas.

The developed process gives a vivid example of successful replacement of dangerous and difficult to handle acetylene gas by a simple and inexpensive calcium carbide. If the further research manages to carry out the chemistry of acetylene utilizing carbide-based technologies, the proposed method will open a new direction in organic chemistry. Without a doubt, the "little" calcium carbide will find its a place in modern chemistry, which acknowledges the ideas of safety, sustainability, and simplification.


The article «Efficient Metal-Free Pathway to Vinyl Thioesters with Calcium Carbide as the Acetylene Source» by Konstantin Rodygin and Valentine P. Ananikov was published in Green Chemistry journal by the Royal Society of Chemistry.

Reference: Green Chemistry, 2015; DOI: 10.1039/C5GC01552A
On-line link: http://dx.doi.org/10.1039/C5GC01552A


Associated links
http://dx.doi.org/10.1039/C5GC01552A
http://AnanikovLab.ru

Ananikov Laboratory | ResearchSea
Further information:
http://www.researchsea.com

More articles from Materials Sciences:

nachricht Breaking bad metals with neutrons
16.01.2018 | DOE/Argonne National Laboratory

nachricht White graphene makes ceramics multifunctional
16.01.2018 | Rice University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

More genes are active in high-performance maize

19.01.2018 | Life Sciences

How plants see light

19.01.2018 | Life Sciences

Artificial agent designs quantum experiments

19.01.2018 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>