OsCl4 — Properties & Data | MatWorld

OsCl4

ceramic

· OsCl4

Osmium tetrachloride (OsCl₄) is an inorganic ceramic compound based on osmium, a refractory transition metal in the platinum group. This material is primarily of research and specialty chemical interest rather than a commodity engineering ceramic, with limited commercial structural applications due to its high cost, rarity, and challenging synthesis and handling requirements. OsCl₄ and related osmium halides are explored in advanced catalysis, coordination chemistry, and specialized electronic or optical research contexts where osmium's unique properties—including high density, thermal stability, and distinctive electronic characteristics—offer distinct advantages over conventional materials.

catalytic applicationsresearch compoundsspecialty chemicalscoordination chemistryhigh-density materialsplatinum-group metal compounds

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	26.97	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	6.660	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	4.817	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	2.018	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	5.100	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.240	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000693	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000717	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-35.97	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-37.16	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	22.59	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3774	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

OsCl4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental