Osmium tetroxide is widely used in electron microscopy because it is an excellent lipid fixative.However,osmium tetroxide can quickly cause irritation of the eyes and skin.Therefore,when handling osmium tetroxide,people should use a chemical hood and wear gloves to protect again osmium tetroxide's

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Osmium tetroxide is toxic and can cause irritation to the eyes and skin. Therefore, it is important to protect oneself from its toxicity by using a chemical hood and wearing gloves. The other options (ignitability, photoreactivity, and corrosivity) are not relevant to osmium tetroxide.

Osmium Tetroxide Is Widely Used in Electron Microscopy Because It