Osmium(Vlll) Oxide for Microscopy 1g
Osmium(VIII) oxide for microscopy. CAS 20816-12-0, EC Number 244-058-7, chemical formula OsO₄.
Manufacturer: Merck
Catalog ID: 124505.0001
Stock: In Stock
Description
| Catalogue Number | 124505 |
| Replaces | OX0260-5; OX0260-3 |
| Synonyms | Osmic acid, Osmiumtetraoxide |
| Description | Osmium(VIII) oxide |
| Overview | Osmium tetroxide for microscopy can be used to visualize unsaturated lipids. A part of the lipids is immediately blackened by the influence of osmic acid solution. The immediate black coloration results from the -C=C- double bond of the unsaturated fatty acid. The fatty acids that are made brownish at first can be blackened by treatment with 60-70% alcohol. For electron microscopy or semithin sectioning the glutardialdehyde-fixed specimens are post-fixed with osmium(VIII) oxide. Lipid inclusions appear black on a yellow to brown background. It is an IVD / CE registered product |
Product Information
| CAS number | 20816-12-0 |
| EC index number | 076-001-00-5 |
| EC number | 244-058-7 |
| Hill Formula | O₄Os |
| Chemical formula | OsO₄ |
| Molar Mass | 254.19 g/mol |
| HS Code | 2843 90 90 |
Applications
| Application | Osmium(VIII) oxide for microscopy. CAS 20816-12-0, EC Number 244-058-7, chemical formula OsO₄. |
Physicochemical Information
| Boiling point | 130 °C (1013 hPa) |
| Density | 4.91 g/cm3 (20 °C) |
| Melting Point | 40 °C |
| pH value | 6 (25 g/l, H₂O, 20 °C) |
| Vapor pressure | 10 hPa (20 °C) |
| Bulk density | 1500 kg/m3 |
| Solubility | 65 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 15 mg/kg |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| Identity (Raman-spectrum) | conforms |
