| 释义 |
砷shēn非金属元素,符号As(arsenium)。有灰、黄、黑三种同素异形体,有毒。用于制硬质合金,砷的化合物用做杀菌剂和杀虫剂。{arsenic (As); nonmetallic chemical element with grey, yellow and black allotropic substances, and used in making hard alloys. Its chemical compounds are used as germicides and insecticides.}旧称also砒{pī in old times}。 |