File:Osmium-tetroxide-2D-dimensions.svg · Wikimedia Commons · See Wikimedia Commons
osmium tetroxide
Sign in to saveAlso known as osmic acid anhydride, osmium oxide, Perosmic oxide, Osmic acid, Osmium tetraoxide, Perosmic acid anhydride, OsO4
chemical compound
OverviewAI-generated
Osmium tetroxide is a chemical compound with the formula OsO₄. Its IUPAC name is tetraoxoosmium. The substance has a density of 5.10, a melting point of 105, and a boiling point of 266. It possesses a mass of 255.941 and a standard enthalpy of formation of -386. The vapor pressure is 7, while solubility is 6. The ionization energy is 12.6.
Safety data indicates an immediately dangerous to life or health level of 1. Exposure limits include a time-weighted average of 0.002 and a short-term limit of 0.006. The compound has four hydrogen bond acceptors and no hydrogen bond donors, with a topological polar surface area of 68.3. It is referenced by 545 other encyclopedia articles.
Synthesized by Vinony from 28 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
In the Vinony graph
Vinony's link graph records 545 inbound references to osmium tetroxide, and connects out to zirconium, oxidation number and Lewis acid–base theory.
It is catalogued under topics including Chembox having GHS data, Chembox image size set and Chemical articles with multiple compound IDs.
Vinony links it to 42 Wikipedia language editions.
Chemical data
- Formula
- O4Os
- Molecular weight
- 254.2 g/mol
- IUPAC name
- tetraoxoosmium
- SMILES
- O=[Os](=O)(=O)=O
- InChIKey
- VUVGYHUDAICLFK-UHFFFAOYSA-N
- Polar surface area
- 68.3 Ų
- H-bond donors
- 0
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
Research
2,612 papers- Osmium tetroxide: a new kind of weapon.The Israel Medical Association journal : IMAJ · 2007
- Dermal discoloration due to osmium tetroxide.Clinical toxicology (Philadelphia, Pa.) · 2023
- Osmium tetroxide as a probe of RNA structure.RNA (New York, N.Y.) · 2017
- Osmium absorption after osmium tetroxide skin and eye exposure.Basic & clinical pharmacology & toxicology · 2020
- Comparative effect of osmium tetroxide and ruthenium tetroxide on Lacazia loboi ultrastructure.Microscopy research and technique · 2021
via PubMed
Wikidata facts
Show 15 more facts
- Commons category
- Osmium tetroxide
- canonical SMILES
- O=[Os](=O)(=O)=O
- NIOSH Pocket Guide ID
- 0473
- density
- 5.10
- immediately dangerous to life or health
- 1
- melting point
- 41
- boiling point
- 135
- vapor pressure
- 7
- solubility
- 6
- ionization energy
- 12.32
- time-weighted average exposure limit
- 0.002
- short-term exposure limit
- 0.006
- chemical formula
- OsO₄
- standard enthalpy of formation
- -386
- crystal system
- monoclinic crystal system
via Wikidata · CC0
~13 min read
Encyclopedic overview
Names
Preferred IUPAC name Osmium tetraoxide
Excerpted from Wikipedia’s “osmium tetroxide” article, available under the CC BY-SA 4.0 licence.