You don't know what you are talking about.  It was a shipload of ~2,750 tons of ammonium nitrate (fertilizer) en route from Moldava to some country.  The ship developed problems under way, found port at Beirut, and everyone lost interest in the cargo.  It sat there for 6 years.  Who knows what set it off?---but it was a chemical detonation (not a deflagration) complete with supersonic blast wave.  Very much akin to the Texas City disaster in 1947 when a shipload of 2,300 tons of ammonium nitrate detonated in port.  Not terribly useful as tactical rocket fuel; the recipe is complicated.