Goma-2

Goma-2 Eco is a type of high explosive manufactured for industrial use (chiefly mining) by Unión Española de Explosivos S.A.

It is a gelatinous, Nitroglycol-based explosive widely used within Spain and exported abroad. It was used by ETA in the 1980s and 1990s.

There are two variants of Goma-2: Goma-2 EC and Goma-2 ECO.

Goma-2 explosive is a mixture of several chemicals:

Although it is a high-explosive detonators are needed to cause a detonation (usually TATP or HMTD).

Goma-2 ECO was the explosive that was used in the 2004 Madrid train bombings. Terrorist Jamal Ahmidan, also known as El Chino, bought the explosive illegally from a mine in northern Spain. It was also planned by the same cell that carried out the Madrid bombings to use the explosive to derail a high-speed train. About 80 kilograms of the explosive was used by ETA in Operation Ogro to assassinate Luis Carrero Blanco.The explosion was so powerful it threw Blanco's car over a five storey building.

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