31
Ga
Gallium

Gallium

A silvery metal with the remarkable property of melting in the palm of your hand, now essential for 5G networks, satellites, and advanced electronics.

Properties

Atomic Mass
69.723
Density
5.91 g/cm³
Melting Point
29.76°C (85.57°F)
Boiling Point
2204°C
Discovered
1875 by Paul-Émile Lecoq de Boisbaudran

The History of Gallium (Ga): The Conquest of the Predicted Element

Gallium (Ga)

The history of Gallium is a scientific fable, that of the phantom element that gave its credentials to modern chemistry.

It all begins in 1871 with the visionary Russian Dimitri Mendeleev. By organizing the known elements, he left an empty space on his famous periodic table. With stunning audacity, he did not simply signal this absence; he created a profile of the unknown element, which he provisionally called 'Eka-Aluminum', predicting its mass, density, and even its low melting point.

Four years later, like a scientific detective, the Frenchman Paul-Émile Lecoq de Boisbaudran triumphed over the enigma. By examining the light spectrum of a zinc ore from the Pyrenees, he noticed new spectral lines, revealing the presence of the missing element. He isolated it and gave it the name Gallium, in homage to his homeland, Gallia (Gaul).

Mendeleev was immediately notified and the perfect concordance between his prediction and Lecoq's discovery was a resounding victory for science. Gallium, this silvery metal that has the almost magical property of melting in the warmth of the hand, has gone from the status of chemical curiosity to that of silent pillar of our era. Today, it no longer just heats thermometers, but powers our phones, our 5G networks and satellites, proving that the greatest advances are sometimes written in the logic of the universe, simply waiting to be discovered.

Key Applications

5G networks and telecommunications
Satellite technology
LED displays and lighting
Solar panels (GaAs)
High-frequency electronics
Medical imaging

Market Data

Primary Supply
China (80-90%), with minor from Germany and Kazakhstan
Demand Trend
Strong growth at 7.1-24% CAGR, expected to double by 2035; driven by semiconductors, 5G, and LEDs
Reserves
Limited and critical, byproduct of bauxite/zinc; global estimates depleting, with high concentration risks

Why Gallium Matters

01

Strategic for 5G infrastructure rollout worldwide

02

China controls 80-90% of global supply, creating geopolitical risk

03

No viable substitutes for most applications

Risks & Substitutes

01

High supply concentration (China ~80%) and export controls.

02

Constrained supply (aluminum byproduct); price volatility.

03

Partial substitutes: Si/SiC in some high‑power/high‑frequency roles; typically lower performance depending on use case.

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