At its worst it is corrosive and it is stultifying. 在最坏的情况下，时间具有腐蚀作用，而且使人更为愚钝。
Hydrofluoric acid on human skin has a strong corrosive effect, wash the floor, picked up a trace of careless, pain, skin will be visibly. 氢氟酸对人体皮肤也有强烈的腐蚀作用，洗楼工不小心沾上了，皮肤会痛上五六天。
