Mercury fulminate may contain trace of mercuric oxalate. 雷汞中可能含有微量的乙二酸汞。
A detonator that explodes when struck. Mercury fulminate is easy to produce, has been known since earliest times and is still widely used. 当打击时爆炸的雷管。雷汞是最早为人们知道的并易于生产的起爆药,现在它仍被采用。