CAS 7440-04-2: Osmium

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Osmium powder (99.8%)

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Osmium, powder

The osmium standard is an analytical method used to measure the level of osmium in a sample. The reaction mechanism involves the reduction of osmium tetroxide with potassium dichromate to form osmium metal and chromium(VI) oxide. This reaction can be monitored by observing changes in the color of the solution, which turns from yellow to deep red as more chromium is reduced. The determination of the concentration of osmium in a sample is carried out by measuring the optical density at 517 nm or by using an atomic absorption spectrophotometer. Osmium has been shown to have antioxidant properties and can act as a catalyst for oxidation reactions. Studies have shown that it acts as an anti-inflammatory agent and reduces pain due to its ability to inhibit prostaglandin synthesis.