casing. The detonation velocity of ammonal is approximately 4,400 metres per second or 9,842 miles per hour.   Proportions An ammonal mixture previously used in hand grenades and shells has the proportions (by mass): ammonium nitrate 58.6% aluminum powder 21% charcoal 2.4% trinitrotoluene 18% Posted by Sooraj S at 18:19 No comments: