Antimony

Material information

The Ancient Element Powering Modern Safety and Storage

Enhancing battery life and material resilience with Less Common Metals.

Antimony is an element with a truly ancient pedigree. Powdered and used as cosmetics in ancient Egypt, today it serves a much more heavy-duty purpose. It is a critical hardening agent that gives standard metals the strength they need to perform, while also serving as a vital chemical shield against fire in our homes and workplaces.

As a trusted UK supplier of advanced materials, Less Common Metals (LCM) bridges the gap between raw chemical potential and industrial application. Based in Ellesmere Port, UK, we supply the high-grade Antimony that the automotive, safety and emerging microelectronics sectors rely on for ultimate reliability.

Technical Details

CompositionAntimony 99.99%
Common metallic impuritiesTrace metals basis
Physical DescriptionSilver/ White, 6mm Ø rod
AnalyticsICP-OES
Certificate of analysisAvailable upon request
PackagingPacked in sealed polythene bags and supplied in securely sealed metal drums, resistant to the impregnation of water

What is Antimony?

Antimony is a lustrous, silvery-bluish-white metalloid. In its pure elemental form, it is quite brittle and flaky. Because of this, it is rarely used on its own. Instead, it is highly valued for what it does when added to other elements. Specifically, its ability to harden soft metals and significantly improve their casting properties.

What is Antimony used for?

Antimony operates primarily behind the scenes, reinforcing and protecting our modern infrastructure:

  • Lead-Acid Batteries: This is the largest application for metallic Antimony. It is alloyed with Lead and Tin to create the heavy-duty plates inside standard lead-acid batteries (the kind that starts your car!). The addition of Antimony makes the lead plates significantly stronger and improves the battery’s charging characteristics.

  • Fire Retardants: In the chemical sector, Antimony compounds (specifically Antimony Trioxide, Sb2O3) are prominent and highly effective additives. They are combined with chlorine- and bromine-containing chemicals to create powerful flame retardants used universally in commercial and domestic products. For example, aeroplane seat cushions, children’s toys and electrical cable insulation.

  • Alloys & Bearings: Adding Antimony to Lead and Tin drastically improves their properties. Here, it is used to create specialised solders, low-friction plain bearings for heavy machinery (Babbitt metal), and even to harden the Lead used in bullets.

  • Microelectronics (Emerging): Antimony is carving out an emerging niche in the semiconductor industry, where it is used as a dopant (impurity element) for ultra-high-speed Silicon wafers and in phase-change memory devices.

Antimony Industry Insight

The Unsung Hero of the Road

While the world focuses heavily on Lithium-Ion batteries for electrical vehicles (EVs), the traditional 12-volt lead-acid battery remains an absolute necessity in almost every vehicle on the road (including EVs, which use them for auxiliary power). The continued reliance on these batteries ensures that the demand for Antimony (a critical element that gives the lead plates their structural integrity) remains a cornerstone of the global automotive supply chain.

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