Explanation

Aluminium powed + Nitrate Called Ammonal  

Ammonal is an explosive made up of ammonium nitrate and aluminium powder, in which the ammonium nitrate functions as an oxidizer and the aluminium as fuel.

The mixture is often referred to as Tannerite, which is a brand of ammonal.

The ammonium nitrate functions as an oxidizer and the aluminium as fuel.

The use of the relatively cheap ammonium nitrate and aluminium makes it a replacement for pure TNT.