PRODUCT Properties
| Melting point: | 3045 °C (lit.) |
| Boiling point: | 5027 °C (lit.) |
| Density | 22.61 g/cm3 (lit.) |
| solubility | soluble in aqua regia |
| form | sponge |
| color | Black |
| Specific Gravity | 22.48 |
| Water Solubility | attacked by aqua regia; barely affected by HCl, H2SO4 [MER06] |
| Merck | 13,6960 |
| Exposure limits | ACGIH: Ceiling 2 ppm OSHA: Ceiling 5 ppm(7 mg/m3) NIOSH: IDLH 50 ppm; Ceiling 5 ppm(7 mg/m3) |
| InChI | InChI=1S/Os |
| InChIKey | SYQBFIAQOQZEGI-UHFFFAOYSA-N |
| SMILES | [Os] |
| Hardness, Vickers | 670 |
| Modulus of Elasticity | 560 GPa |
| Hardness, Brinell | 580, Converted from Vickers for 3000 kg load/10 mm ball Brinell test. |
| Hardness, Rockwell A | 80, Converted from Vickers. |
| Hardness, Rockwell C | 57, Converted from Vickers. |
| Hardness, Knoop | 822, Converted from Vickers. |
| CAS DataBase Reference | 7440-04-2(CAS DataBase Reference) |
| EPA Substance Registry System | Osmium (7440-04-2) |
Description and Uses
Osmium is silvery white, hard transition metals with a high melting point. osmium is one of the rarest elements on earth.
Osmium, plasma standard solution is used as a standard solution in analytical chemistry and atomic absorption spectroscopy. It is also used as a single-element standard solution for plasma emission spectrometry.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H228-H315-H318-H335 |
| Precautionary statements | P210-P240-P241-P280-P302+P352-P305+P351+P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-37/38-41-36/38 |
| Safety Statements | 16-26-36/37/39 |
| RIDADR | UN 3089 4.1/PG 2 |
| WGK Germany | - |
| RTECS | RN1100000 |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | II |
| HS Code | 71104100 |
| Hazardous Substances Data | 7440-04-2(Hazardous Substances Data) |
| Toxicity | LDLo ivn-dog: 17 mg/kg SMSJAR 26,131,1826 |
| Limited Quantities | 1.0 Kg (2.2 lbs) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
