管制信息锇酸（剧毒） 本品根据《危险化学品安全管理条例》受公安部门管制。 名称中文名称：锇酸 化学式OsO4 或H2[OsO4(OH)2] 相对分子质量254.21或290.2406 性状白色或浅黄色单斜结晶。有似氯的辛辣气味。易升华挥发。25℃时的溶解度(g/100g)：水中7.24、四氯化碳375。溶于乙醇、乙醚、苯、氨水和氧氯化磷。相对密度5.10。熔点40.6℃。沸点130℃。剧毒，半数致死量(大鼠，经口)14mg/kg。其蒸气有刺激性。有腐蚀性。 储存
取大脑皮层用戊二醛和锇酸固定，透射电镜下观察脑超微结构的变化。
The separated brain was fixed with Glutaraldehyde and Osmic acid. The changes of the cerebral ultrastructure were observed under the electron microscope.
本文用醛-锇酸固定法对大白鼠正中隆起栅状带的超微结构进行了研究。
The ultrastructure of the palisade zone of median eminence in the rat has been studied by formaldehyde-osmic acid fixation method.
方法：裸鼠表皮分别用四氧化钌和锇酸固定后电镜下观察裸鼠表皮角质层脂质的超微结构。
Methods: Ruthenium tetroxide and osmium tetroxide were compared as post fixative in the preparation of hairless epidermis for transmission electron microscopic examination.
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