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Metals, alloys and elements

Technetium

Also known as 99m, Technetium, Technetium, elemental, Tc

CAS 7440-26-8Formula TcMolar mass 98.00 g/molEC 231-136-0
8 suppliers listed
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
Appearance
Close-packed hexagonal structure, isomorphous with rhodium, ruthenium, and osmium
Melting point
2,157 °C
Boiling point
4,265 °C
Density
11 g/cm³
Solubility
Dissolves in nitric acid, aqua regia, and concentrated sulfuric acid, not soluble in hyd…
HS code
284443
Category
Metals, alloys and elements
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Technetium?

Plain description, key identifiers and synonyms

Technetium atom is a manganese group element atom.

Technetium is a chemical element with symbol Tc and atomic number 43.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
technetium
CAS number
7440-26-8 CAS number cross-checked
EC number
231-136-0
Molecular formula
Tc
InChIKey
GKLVYJBZJHMRIY-UHFFFAOYSA-N
InChI
InChI=1S/Tc
SMILES (canonical and isomeric)
[Tc]

Synonyms

  • 99m, Technetium
  • Technetium, elemental
  • Tc
  • technetium atom
  • tecnecio
  • Element-Tc
  • Element:Tc
  • Atomic Technetium
  • technetium hydride
  • Technetium element
  • Element Technetium
  • Element:Technetium
  • Tc (element)
  • Technetium (atomic)
  • technetium nonahydride
  • Technetium (element)
  • 43Tc

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Close-packed hexagonal structure, isomorphous with rhodium, ruthenium, and osmiumexp.
Melting point
2,157 °Cexp.
Boiling point
4,265 °Cexp.
Density
11 g/cm³exp.
Solubility
Dissolves in nitric acid, aqua regia, and concentrated sulfuric acid, not soluble in hydrochloric acid of any strengthexp.
Vapour pressure
1 Pa at 2454 °C, 10 Pa at 2725 °C, 100 Pa at 3051 °C, 1 kPa at 3453 °C, 10 kPa at 3961 °C, 100 kPa at 4621 °C (all values are extrapolated)exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
98.00 g/molcalc.
Exact mass
96.9064 Dacalc.
LogP (octanol/water)
0calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Technetium suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 8 suppliers
8 of 8 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

8 suppliers in 5 countries

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Technetium price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Technetium and its alloys are superconductors and can be used to create high-strength magnetic fields at low temperature. ...

Cryochemistry, corrosion resistance.

Technetium is a very good corrosion inhibitor for steel, and protection can be achieved by adding only very small amounts during production. However, this use is limited by the radioactive nature of technetium.

How it is made

The free metal is obtained from reactor fission products by solvent extraction followed by crystallization as ammonium pertechnetate, which is reduced with hydrogen.

Technetium was first obtained by deuteron bombardment of molybdenum, but since has been found in the fission products of uranium and plutonium.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Technetium is traded under.

HS 2844.43Indicative HS code

Radioactive elements and isotopes and compounds other than those of subheading 284410…

World exports in 2024
$2.19B
+8.8% vs 2023, imports $2.53B
2022 to 2024
Top exporters
  1. Canada32.1%
  2. Netherlands17.0%
  3. Germany11.4%
Top importers
  1. United States37.8%
  2. Germany8.4%
  3. China5.8%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Technetium is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Technetium, based on the data on this page

What is Technetium?

Technetium atom is a manganese group element atom.

What is the CAS number of Technetium?

The CAS registry number of Technetium is 7440-26-8.

What is the molecular formula and weight of Technetium?

The molecular formula of Technetium is Tc and its molar mass is 98.00 g/mol.

What is Technetium used for?

Technetium and its alloys are superconductors and can be used to create high-strength magnetic fields at low temperature. ... Cryochemistry, corrosion resistance. Technetium is a very good corrosion inhibitor for steel, and protection can be achieved by adding only very small amounts during production.

Is Technetium hazardous?

No GHS hazard classification for Technetium is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Technetium?

Technetium is usually classified under HS code 284443 (Radioactive elements and isotopes and compounds other than those of subheading 284410…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Technetium?

CompoundList lists 8 suppliers of Technetium in China, Japan, South Korea, Russia and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Technetium?

Suppliers quote Technetium on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Technetium

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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