The Osmium Tetraoxide Solution is a chemical used primarily for fixation purposes in electron microscopy within the Life Science field. It falls under the category of Histology/Microscopy, specifically Fixation, and more specifically Fixation in electron microscopy. The CAS Number for this solution is 20816-12-0. This substance is known as Osmium Tetraoxide, with a Molecular Weight of 254.2 g/mol. It belongs to the groups of Osmium compounds and Metal oxides. In the workplace, various precautions should be taken when handling this solution due to its toxic and corrosive nature. Safety measures such as wearing safety goggles, safety gloves, and adhering to no smoking, no eating, and no drinking policies are essential. The solution has a Boiling Point of 266°F at 760 mmHg and a Melting Point of 105°F. It

• CAS Number: 20816-12-0
• Molecular Formula: O4Os
• Molecular Weight: 254.2
• Exact Mass: 255.94114
• Boiling Point: 266 °F at 760 mmHg (NIOSH, 2024)
• Melting Point: 105 °F (NIOSH, 2024)
• Density: Relative Vapour Density (air = 1): 8.8
• GHS Signal Word: Danger
• Hazard Statements:
• H300: Fatal if swallowed [Danger Acute toxicity, oral]
• H301: Toxic if swallowed [Danger Acute toxicity, oral]