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Oxidation Number
Number that describes degree of oxidation of an atom in a chemical compound; the hypothetical charge that an atom would have if all bonds to atoms of different elements were fully ionic
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42 articles (0.01 seconds)
Berkelocene: Chemists Create Berkelium-Containing Organometallic Molecule
a month ago
Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) have prepared an organometallic complex from 0.3 milligrams of berkelium-249.
Science & Technology
www.sci.news
New parameter enhances insights into the evolution of mantle's redox states
8 months ago
The oxygen fugacity (fO2) of the mantle controls the speciation and mobility of volatiles within it, influencing the composition of volatiles released during mantle-derived magmatic activity, and thereby regulating the composition of the atmosphere.
Science & Technology
phys.org
Research team combines two catalysts to make common chemical production safer, more environmentally friendly
a year ago
The chemical industry has long been shadowed by unwelcome images of billowing smokestacks and pipes discharging toxic effluent. Modern manufacturing practices have done much to mitigate the industry's environmental impact, but there remains room for improvement.
Science & Technology
phys.org
Synthesizing a 2D copper-based complex and expanding it into a 3D structure to explore its applications
2 years ago
A research group has synthesized a 2D copper-based complex and expanded it into a 3D structure by adding H4SiW12O40 and rare earth metal. Through this synthesis method the team obtained three isostructural 3d−4f metal-incorporated POMs.
Science & Technology
phys.org
The Great Oxidation Event: Decoding Earth's Ancient Atmospheric Mysteries
2 years ago
Using synchrotron techniques, scientists have unveiled important information on The Great Oxidation Event by studying apatite inclusions in zircon crystals from old magmas with the ESRF – Extremely Brilliant Source. Around 2.4 billion years ago, a pivotal moment in Earth's history took place: The
Science & Technology
scitechdaily.com
chemical element with symbol Ga and atomic number 31
2 years ago
Article URL: https://en.wikipedia.org/wiki/Gallium Comments URL: https://news.ycombinator.com/item?id=36581940 Points: 1 # Comments: 0
Science & Technology
en.wikipedia.org
Copper: Colors (Plenty) and Money (Not So Much)
2 years ago
It's not often that one stumbles across one million pennies in their attic. But this is just what happened to a California family. Those folks found sacks of pre-1982 pennies weighing 2.7 tons. Could there be a better time to look at the fascinating and colorful properties of copper? I think not.
Science & Technology
www.acsh.org
Scientists develop long-life electrode material for solid-state batteries ideal for EVs
2 years ago
Scientists have developed a positive electrode material that doesn't diminish after repeated charging cycles, for the manufacture of durable solid-state batteries.
Science & Technology
newsroom.unsw.edu.au
Cancer Cells' Iron Addiction May Be an Achilles Heel
3 years ago
Researchers at the University of California, San Francisco (UCSF), have discovered that cells carrying the most common mutation found in human cancer accumulate large amounts of ferrous iron and that this "ferroaddiction" can be exploited to specifically deliver powerful anticancer drugs without har
Science & Technology
scitechdaily.com
Only a Few Grams of This Element Exist—and Scientists Have Used It to Break the Rules of the Periodic Table
a month ago
Doesn't "organometallic sandwich" sound appetizing?
Science & Technology
www.popularmechanics.com
Methylene Blue - TikTok Craze Plus a Dreaded Chemistry Lesson From Hell
5 months ago
It's not hard to find some crazy trends on TikTok, often involving health claims. But how many can be turned into a Dreaded Chemistry Lesson From Hell? Here's the first, along with reasons not to take methylene blue supplements.
Science & Technology
www.acsh.org
Experimental constraints on the oxidation state of early magma on the Earth
2 years ago
The link between a planetary interior and its surface is a key to understanding the formation process of the surface environment of the planet.
Science & Technology
phys.org
Study shows bacteria can survive on radioactive elements
2 years ago
Bacteria that feed on methanol are able to grow on certain rare earth elements as well as their radioactive relatives. These findings suggest a possible role for such bacteria in the decontamination of areas where actinides are spilled, or in the separation of lanthanides and actinides for analytical or preparative purposes, according to a study published in the journal Angewandte Chemie International Edition.
Science & Technology
phys.org
Scientists Make History by Growing Plants in Soil From Moon
3 years ago
University of Florida scientists used lunar soil collected during Apollo 11, 12 and 17 missions to successfully grow plants from seed. It's a first in human history and could help future space colonists grow food on the moon.
Science & Technology
science.howstuffworks.com
A catalyst for more efficient green hydrogen production
3 years ago
Researchers have developed a new water-splitting process and material that maximize the efficiency of producing green hydrogen, making it an affordable and accessible option for industrial partners that want to convert to green hydrogen for renewable energy storage instead of conventional, carbon-emitting hydrogen production from natural gas.
Science & Technology
www.sciencedaily.com
Chemists succeed in upscaling a common reagent for industrial level applications
8 months ago
The metallic element samarium, when bound with other elements, is an incredibly useful chemical reagent for synthesizing molecules that can lead to new pharmaceuticals. Discovered in a Russian mine in 1879, the element was named after the mineral it was found in, called samarskite, which itself was named after Russian mining engineer Vassili Samarsky-Bykhovets.
Science & Technology
phys.org
DEA's Abuse, Prevention & Control Laws: Lacking Science, Common Sense
2 years ago
It should come as no surprise to anyone trying to get or fill a prescription for a controlled substance that our drug laws are nuts. But you probably don't fully appreciate how nutty they really are. This article just scratches the surface of the nut. But that's still plenty.
Science & Technology
www.acsh.org
Discovering the unexplored: Synthesis and analysis of a new orthorhombic Sn3O4 polymorph
2 years ago
Oxides of tin (SnxOy) are found in many of modern technologies due to their versatile nature. The multivalent oxidation states of tin—Sn2+ and Sn4+—impart tin oxides with electroconductivity, photocatalysis, and various functional properties. For the photocatalysis application of tin oxides, a narrow bandgap for visible-light absorption is indispensable to utilize a wide range of solar energy. Hence, the discovery…
Science & Technology
phys.org
Promoting the electrochemical hydrogenation of furfural by synergistic Cu⁰-Cu⁺ active sites
2 years ago
In a study is published in Science China Chemistry and led by Prof. Yuqin Zou (College of Chemistry and Chemical Engineering, Hunan University), experiments were performed by using a series of in situ characterization and the density functional theory (DFT) calculation.
Science & Technology
phys.org
Electrocatalysis: Iron and cobalt oxyhydroxides examined
2 years ago
Very soon, we need to become fossil free, not only in the energy sector, but in industry as well. Hydrocarbons or other raw chemicals can be produced in principle using renewable energy and abundant molecules such as water and carbon dioxide with the help of electrocatalytically active materials. But at the moment, those catalyst materials either consist of expensive and rare materials or lack efficiency.
Science & Technology
phys.org
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