Sodium metal (Na) is a soft, silvery alkali metal prized for its strong reducing power and electrical/thermal conductivity—and equally respected for its reactivity. Its combination of low density, low melting point, and distinctive deformation behavior makes it a material of high interest across chemical processing and next-generation energy storage.
Material Overview
Elemental sodium crystallizes in a body-centered cubic (BCC) structure, contributing to high electron mobility and good electrical conductivity. It has a melting point of 97.8 °C and a density of about 0.97 g/cm3. Mechanically, sodium is very ductile with low tensile strength and exhibits pronounced necking prior to failure, a behavior that influences how it is processed and integrated into devices. Chemically, Na reacts vigorously with water to form sodium hydroxide (NaOH) and hydrogen gas (H2), and it readily oxidizes in air—hence the need for inert-atmosphere handling. Electrochemically, its highly negative standard potential (approximately −2.71 V vs. SHE) underpins its use as a powerful reductant and as a candidate anode for rechargeable batteries.
Applications and Advantages
In synthesis and refining, sodium serves as an efficient reducing agent for producing metals and specialized reagents. Its excellent thermal properties support use as a heat-transfer medium in certain advanced systems. The most active research front is energy storage: sodium-metal batteries leverage Na’s high theoretical capacity and elemental abundance to offer a cost-effective alternative to lithium. Current challenges—dendrite formation, interfacial instability, and coulombic inefficiency—are being addressed through engineered host/skeleton anodes, protective interphases, and electrolyte optimization. Thin-sodium architectures and tailored electrolytes have demonstrated significant gains in cycle life and safety, accelerating progress toward practical deployment.
Goodfellow Availability
Goodfellow provides high-quality sodium metal for research and industrial R&D, supplied with appropriate protective packaging and documentation. Materials can be prepared for handling under inert conditions, and custom dimensions are available to support prototype development or scale-up. For sourcing, technical guidance, and related materials, explore our catalogue below.
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References
- Huang, S., He, Z., Li, C., Pan, W., Li, W., Liu, W., Li, T., Chen, Y. S., & Chen, L. (2024). Preparation and application of thin-sodium metal. Small Science. https://doi.org/10.1002/smsc.202300362
- Lee, B., Paek, E., Mitlin, D., & Lee, S. W. (2019). Sodium metal anodes: Emerging solutions to dendrite growth. Chemical Reviews. https://doi.org/10.1021/ACS.CHEMREV.8B00642
- Shin, J., & Pharr, M. (2022). Fracture behavior of metallic sodium and implications for battery applications. Materials Horizons. https://doi.org/10.1039/d2mh01021f
- Saleh, F., & Lopes, I. J. S. (2023). Chemistry, electrochemistry, and electrochemical applications of sodium. Elsevier Reference Module. https://doi.org/10.1016/b978-0-323-96022-9.00084-0