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Updated: Jul 5, 2026

Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion

Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion

Published on: January 30, 2018

Structural diversity of sodium.

Eugene Gregoryanz¹, Lars F Lundegaard, Malcolm I McMahon

¹School of Physics and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3JZ, UK. e.gregoryanz@ed.ac.uk

Science (New York, N.Y.)

|May 24, 2008

Summary

This summary is machine-generated.

Sodium shows a minimum melting temperature around 118 gigapascals. This is linked to seven crystalline phases, revealing complex behavior under extreme pressure and temperature conditions.

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Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

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Published on: August 2, 2012

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Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion

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Published on: January 30, 2018

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

Area of Science:

Materials Science
Condensed Matter Physics
High-Pressure Science

Background:

Sodium's phase behavior under high pressure is not fully understood.
Previous studies suggested complex structures but lacked detailed phase mapping.

Purpose of the Study:

To investigate the melting curve of sodium at extreme pressures.
To identify crystalline phases and structural transitions in sodium above 100 gigapascals.

Main Methods:

Single-crystal X-ray diffraction under high pressure.
Precise control and measurement of pressure and temperature.

Main Results:

A pronounced minimum in the melting temperature of sodium was observed around 118 gigapascals.
Seven distinct crystalline phases were identified near this minimum.
Numerous structural transitions were triggered by minor pressure and temperature changes.

Conclusions:

The melting curve minimum is associated with complex sodium phases.
Extreme conditions reveal extraordinary solid and liquid states of sodium.
Findings have implications for understanding other simple metals under pressure.