毒药砒石与月石、白矾、滑石、石膏等药品形色颇似,尤其是粉碎之后,更不易辨认,相互混淆误用时有发生。为了用药准确,防止事故发生,现将它们的简易试验鉴别分述于下。一、性状鉴别见表。二、理化鉴别1.升华反应:取样品粉末约0.5克置于口径稍小于载玻片的小烧杯中,上盖载玻片, The poisonous meteorite and the moonstone, white pebbles, talc, gypsum and other medicines are quite similar in shape. Especially after being crushed, they are less recognizable and misunderstood. In order to accurately use medications and prevent accidents, their simple trial identification is now described below. First, the characteristics of identification table. Second, physical and chemical identification 1. Sublimation reaction: take about 0.5 grams of sample powder placed in a small beaker with a slightly smaller diameter than the glass slide, cover the slide,