Tc — Properties & Data | MatWorld

Tc

metal

· Tc

Technetium (Tc) is a synthetic transition metal with no stable isotopes, produced artificially through nuclear fission or cyclotron bombardment. It is primarily used in medical imaging and nuclear medicine applications, where its radioactive isotopes (especially Tc-99m) serve as tracers for diagnostic procedures including bone scans, cardiac imaging, and infection detection. Engineers encounter technetium primarily in nuclear medicine instrumentation design, radiation shielding, and specialized catalyst applications in chemical processing, where its unique nuclear and chemical properties offer advantages unavailable from stable elements.

medical imaging tracersnuclear medicine diagnosticsradiation shielding designindustrial catalystsresearch instrumentationnuclear fuel cycles

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	299.2	GPa	DFT · OptB88vdW
↳	300.2	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1356	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3000	-	DFT · OptB88vdW
↳	0.2958	-	DFT · PBE
Shear Modulus(G)2 entries	139.5	GPa	DFT · OptB88vdW
↳	141.9	GPa	DFT · PBE

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
Density(ρ)	11.19	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000564	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000573	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.087	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-2.040	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.07232	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

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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.

Tc

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Regulatory Screening

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