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Osmium tetroxide

Molecular FormulaO₄Os
Average mass254.228 Da
Monoisotopic mass255.941162 Da
ChemSpider ID28158

More details:

Names and Synonyms
Database ID(s)

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

Osmium tetroxide [Wiki]

20816-12-0 [RN]

244-058-7 [EINECS]

MFCD00011150

Os EnCat(R) 40

'Osmic acid’

Osmium oxide

Osmium oxide (OsO4) (T-4)-

Osmium oxide (OsO4), (β-4)-

Osmium tetraoxide

More...

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

201030_SIAL [DBID]

208868_SIAL [DBID]

251755_SIAL [DBID]

365092_ALDRICH [DBID]

419494_SIAL [DBID]

658685_ALDRICH [DBID]

75632_FLUKA [DBID]

75633_FLUKA [DBID]

c0924 [DBID]

HSDB 719 [DBID]

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Experimental data
Predicted - ACD/Labs
Predicted - ChemAxon

Experimental Physico-chemical Properties

Experimental Melting Point:

39.5-41 °C Sigma-Aldrich SIGALD-201030

39.5-41 °C Oakwood 102937

Experimental Boiling Point:

Experimental Ionization Potent:

12.6 Ev NIOSH RN1140000
Experimental Vapor Pressure:

7 mmHg NIOSH RN1140000
Experimental Solubility:

Soluble in chloroform, alcohol and ethers Alfa Aesar 12103

Miscellaneous

Appearance:

Colorless, crystalline solid or pale-yellow mass with an unpleasant, acrid, chlorine-like odor. [Note: A liquid above 105F.] NIOSH RN1140000
Safety:

DANGER: OXIDIZER, burns skin and eyes Alfa Aesar 12103
First-Aid:

Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately NIOSH RN1140000
Exposure Routes:

inhalation, ingestion, skin and/or eye contact NIOSH RN1140000

Symptoms:

Target Organs:

Eyes, skin, respiratory system NIOSH RN1140000
Incompatibility:

Hydrochloric acid, easily oxidized organic materials [Note: Begins to sublime below BP. Contact with other materials may cause fire.] NIOSH RN1140000

Personal Protection:

Exposure Limits:

NIOSH REL : TWA 0.002 mg/m 3 (0.0002 ppm) ST 0.006 mg/m 3 (0.0006 ppm) OSHA PEL ?: TWA 0.002 mg/m 3 NIOSH RN1140000

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density:
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors:	4
#H bond donors:	0
#Freely Rotating Bonds:	0
#Rule of 5 Violations:

ACD/LogP:
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area:	68 Å²
Polarizability:
Surface Tension:
Molar Volume:

Click to predict properties on the Chemicalize site

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Osmium tetroxide

More details:

Experimental Melting Point:

Experimental Boiling Point:

Experimental Ionization Potent:

Experimental Vapor Pressure:

Experimental Solubility:

Appearance:

Safety:

First-Aid:

Exposure Routes:

Symptoms:

Target Organs:

Incompatibility:

Personal Protection:

Exposure Limits:

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