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 The stacked colour sensor
16.11.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

nachricht Counterfeits and product piracy can be prevented by security features, such as printed 3-D microstructures
16.11.2017 | Karlsruher Institut für Technologie (KIT)

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>