Ammonal is an explosive mixture of ammonium nitrate, aluminium dust and stearic acid. It's misused since it uses ammonium nitrate as oxidizer and aluminium as fuel, but ammonium nitrate is a high explosive itself (though it's hard to detonate). It also has the problem of ammonium nitrate being highly hygroscopic. It burns when open, and detonates when confined.
Ammonal is an explosive made up of ammonium nitrate, trinitrotoluene, and aluminium powder mixed in a ratio of roughly 22:67:11.
From early 1915 the British employed ammonal for their mines during the First World War, the composition was 65% ammonium nitrate, 15% TNT, 17% coarse aluminum and 3% charcoal.
Three of the mines at the Battle of Messines which were exploded at the start of the Third Battle of Ypres contained 30,000 lb of ammonal, the fourth contained 20,000 lb.
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