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一般說明
四氧化锇(OsO4)也被称为锇,是一种重的四面体对称分子。它可同时作为电镜的染料和非凝固型固定剂,主要用于组织病理学实验室中的生物组织检测。标本用四氧化锇再固定,以确保脂质保存。
應用
四氧化锇溶液被用作电子显微镜中的固定剂。
生化/生理作用
四氧化锇也被称为锇,主要用作组织的二次固定剂。该分子与脂类部分反应,并负责氧化脂肪酸的不饱和键。这种反应增加了生物样品的密度和对比度。在正常组织中,锇的存在导致强烈的黑色染色,正常眼睛可以看到。此外,它还可用作电子显微镜检查中的媒染剂(在后期与染色剂或染料结合的分子),从而增强铅染色。
訊號詞
Danger
危險分類
Acute Tox. 2 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
儲存類別代碼
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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