PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Throwing out the textbook: Salt surprises chemists

2013-12-20
(Press-News.org) Contact information: Alexander Goncharov
agoncharov@carnegiescience.edu
202-478-8947
Carnegie Institution
Throwing out the textbook: Salt surprises chemists

Washington, D.C.—Table salt, sodium chloride, is one of the first chemical compounds that schoolchildren learn. New research from a team including Carnegie's Alexander Goncharov shows that under certain high-pressure conditions, plain old salt can take on some surprising forms that violate standard chemistry predictions and may hold the key to answering questions about planet formation. Their work is published December 20 in Science.

The team, which also included Carnegie's Elissaios Stavrou and Maddury Somayazulu, among others, combined new computational methods and structure-prediction algorithms with high-pressure experiments to study the range of changes that simple sodium chloride undergoes under pressure. They predict some unanticipated reaction results under high pressure that could help geochemists scientists reconcile ongoing mysteries involving minerals found in planetary cores.

The team first used advanced algorithms to identify an array of possible stable structural outcomes from compressing rock salt. They then attempted to verify these predictions, using a diamond anvil to put salt mixed with molecular chlorine or metallic sodium under high pressured.

"We discovered that the standard chemistry textbook rules broke down," Goncharov said.

The well-understood rock salt, NaCl, turned into stable compounds of Na3Cl, Na2Cl, Na3Cl2 and NaCl7, all of which have highly unusual chemical bonding and electronic properties.

"If this simple system is capable of turning into such a diverse array of compounds under high-pressure conditions, then others likely are, too," Goncharov added. "This could help answer outstanding questions about early planet cores, as well as to create new materials with practical uses."

The research team also included lead author Weiwei Zhang of China Agricultural University; Artem Oganov, Qiang Zhu, Eddine Boulfelfel, and Andriy Lyakhov of State University of New York Stony Brook; Vitali Prakapenka of the University of Chicago; and Zuzana Konopkova of Photon Science DESY.



INFORMATION:

This work was supported by the National Science Foundation, DARPA, the government of the Russian Federation, China's Foreign Talents Introduction and Academic Exchange Program, German BMBF, the Young Teachers Development Project in China Agricultural University, the Army Research Office, and EFREE a BES-EFRC center at Carnegie.

Calculations were performed on XSEDE facilities and on the cluster of the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the DOE-BES. X-ray diffraction experiments were performed at GeoSoilEnviroCARS (Sector 13), Advanced Photon Source (APS), Argonne National Laboratory and Petra III, DESY, Hamburg, Germany. GeoSoilEnviroCARS is supported by the National Science Foundation - Earth Sciences and Department of Energy - Geosciences. Use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences. PETRA III at DESY is a member of the Helmholtz Association (HGF).

The Carnegie Institution for Science is a private, nonprofit organization headquartered in Washington, D.C., with six research departments throughout the U.S. Since its founding in 1902, the Carnegie Institution has been a pioneering force in basic scientific research. Carnegie scientists are leaders in plant biology, developmental biology, astronomy, materials science, global ecology, and Earth and planetary science.



ELSE PRESS RELEASES FROM THIS DATE:

X-ray laser maps important drug target

2013-12-20
X-ray laser maps important drug target New technology allows faster, more accurate imaging of hard-to-study membrane proteins Menlo Park, Calif. — Researchers have used one of the brightest X-ray sources on the planet to map the 3-D structure ...

Anxiety linked to higher long-term risk of stroke

2013-12-20
Anxiety linked to higher long-term risk of stroke American Heart Association Rapid Access Journal Report The greater your anxiety level, the higher your risk of having a stroke, according to new research published in the American Heart Association journal Stroke. The ...

Natural gas saves water, even when factoring in water lost to hydraulic fracturing

2013-12-20
Natural gas saves water, even when factoring in water lost to hydraulic fracturing A new study finds that in Texas, the U.S. state that annually generates the most electricity, the transition from coal to natural gas for electricity generation is saving ...

Scientists decode serotonin receptor at room temperature

2013-12-20
Scientists decode serotonin receptor at room temperature X-ray laser opens up new paths for investigating biomolecules This news release is available in German. An international research team has decoded the molecular structure of the medically ...

Gladstone scientists discover how immune cells die during HIV infection; identify potential drug to block AIDS

2013-12-20
Gladstone scientists discover how immune cells die during HIV infection; identify potential drug to block AIDS Gladstone plans to launch Phase 2 trial with existing anti-inflammatory SAN FRANCISCO, CA—December 19, 2013—Research led by scientists at the Gladstone ...

Greater dietary fiber intake associated with lower risk of heart disease

2013-12-20
Greater dietary fiber intake associated with lower risk of heart disease As little as 1 extra portion of wholegrains plus more fruit and vegetables can decrease risk In recent years, a decline in both cardiovascular disease (CVD) and coronary heart disease ...

Nearly 8 percent of hip implants not backed by safety evidence

2013-12-20
Nearly 8 percent of hip implants not backed by safety evidence Current device regulation process 'seems to be entirely inadequate,' warn researchers The researchers say the current regulation process "seems to be entirely inadequate" and they call for a ...

Government's voluntary approach to improving hospital food is not working, argues expert

2013-12-20
Government's voluntary approach to improving hospital food is not working, argues expert 3 out of 5 hospital meals found to contain more salt than a Big Mac In an article published on bmj.com today, she says the government has wasted more than £54 million ...

Many people with diabetes still lose vision, despite availability of vision-sparing treatment

2013-12-20
Many people with diabetes still lose vision, despite availability of vision-sparing treatment Researchers blame lack of education about advances in preventive care Despite recent advances in prevention and treatment of most vision loss attributed to diabetes, ...

Salty surprise -- ordinary table salt turns into 'forbidden' forms

2013-12-20
Salty surprise -- ordinary table salt turns into 'forbidden' forms High-pressure X-ray experiments violate textbook rules of chemistry This news release is available in German. High-pressure experiments with ordinary table salt have produced ...

LAST 30 PRESS RELEASES:

Thirty-year mystery of dissonance in the “ringing” of black holes explained

Less intensive works best for agricultural soil

Arctic rivers project receives “national champion” designation from frontiers foundation

Computational biology paves the way for new ALS tests

Study offers new hope for babies born with opioid withdrawal syndrome

UT, Volkswagen Group of America celebrate research partnership

New Medicare program could dramatically improve affordability for cancer drugs – if patients enroll

Are ‘zombie’ skin cells harmful or helpful? The answer may be in their shapes

University of Cincinnati Cancer Center presents research at AACR 2025

Head and neck, breast, lung and survivorship studies headline Dana-Farber research at AACR Annual Meeting 2025

AACR: Researchers share promising results from MD Anderson clinical trials

New research explains why our waistlines expand in middle age

Advancements in muon detection: Taishan Antineutrino Observatory's innovative top veto tracker

Chips off the old block

Microvascular decompression combined with nerve combing for atypical trigeminal neuralgia

Cutting the complexity from digital carpentry

Lung immune cell type “quietly” controls inflammation in COVID-19

Fiscal impact of expanded Medicare coverage for GLP-1 receptor agonists to treat obesity

State and sociodemographic trends in US cigarette smoking with future projections

Young adults drive historic decline in smoking

NFCR congratulates Dr. Robert C. Bast, Jr. on receiving the AACR-Daniel D. Von Hoff Award for Outstanding Contributions to Education and Training in Cancer Research

Chimpanzee stem cells offer new insights into early embryonic development

This injected protein-like polymer helps tissues heal after a heart attack

FlexTech inaugural issue launches, pioneering interdisciplinary innovation in flexible technology

In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

Methyl eugenol: potential to inhibit oxidative stress, address related diseases, and its toxicological effects

A vascularized multilayer chip reveals shear stress-induced angiogenesis in diverse fluid conditions

AI helps unravel a cause of Alzheimer's disease and identify a therapeutic candidate

Coalition of Autism Scientists critiques US Department of Health and Human Services Autism Research Initiative

Structure dictates effectiveness, safety in nanomedicine

[Press-News.org] Throwing out the textbook: Salt surprises chemists