95 Am 243

Americium

actinide · Group 3 · Period 7

2 section(s) thin

Atomic properties

Atomic number
95
Z
Atomic weight
243[1]
g/mol
Density
12 g/cm³
at STP
Melting point
1176 °C
at 1 atm
Boiling point
2011 °C
at 1 atm
Crystal structure
hexagonal
Electron config.
[Rn] 5f⁷ 7s²
Oxidation states
+3, +4, +5, +6
most common

Market data

No tradeable futures market for Am on Yahoo / Stooq. Live market data is not available; pricing in this page is based on contract reference figures from the source documents.

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical ActivityPrice Range (USD/mg)Main Applications
Americium-241 OxideAmO₂273.00 g/mol3.43 Ci/g$1,500-2,000Smoke detectors, neutron sources
Americium-241 MetalAm241.00 g/mol3.43 Ci/g$2,500-3,500Research, neutron sources
Am-241/Be Neutron SourceAm/Be compositeVariable0.1-50 Ci$15,000-50,000/sourceOil well logging, moisture gauges
Americium-243 OxideAmO₂275.00 g/mol0.20 Ci/g$3,000-4,000Research, isotope production
Americium ChlorideAmCl₃349.36 g/molVariable$2,000-3,000Research, radiochemistry
Americium NitrateAm(NO₃)₃429.02 g/molVariable$1,800-2,500Separation processes
Ionization Chamber SourcesAmO₂ in gold matrixVariable0.9-1.0 µCi$25-50/unitSmoke detectors
Calibration SourcesAm-241241.00 g/mol10 nCi - 10 µCi$500-5,000/sourceInstrument calibration

Suppliers by country

🇺🇸 United States

CompanyProduct FormsSpecialties
Oak Ridge National LaboratoryAm-241, Am-243, oxide forms, research quantitiesHigh-purity isotopes, custom synthesis, research materials
Idaho National LaboratoryAm-241/Be sources, oxide formsNeutron sources, fuel research
Eckert & ZieglerCalibration sources, sealed sourcesMedical and industrial isotopes
QSA GlobalAm-241/Be neutron sourcesIndustrial radiography sources

🇷🇺 Russia

CompanyProduct FormsSpecialties
JSC IsotopeAm-241, Am-243, various chemical formsIsotope production, bulk quantities
NIIAR (Dimitrovgrad)High-purity americium, research materialsReactor production, transplutonium elements

🇫🇷 France

CompanyProduct FormsSpecialties
Orano (formerly Areva)Am-241 from reprocessing, oxide formsNuclear fuel cycle, isotope recovery
CEA (Commissariat à l'énergie atomique)Research quantities, high-purity materialsResearch isotopes, actinide chemistry

🇬🇧 United Kingdom

CompanyProduct FormsSpecialties
National Nuclear LaboratoryAm-241, research quantitiesNuclear research, isotope production
Amersham (GE Healthcare)Sealed sources, calibration standardsMedical isotopes, industrial sources

🇯🇵 Japan

CompanyProduct FormsSpecialties
Japan Atomic Energy AgencyResearch materials, Am-241Nuclear research, fuel cycle studies

References

No citations on this page yet. References will appear here once enrichment runs.

Explore on Amazon

Coverage notes

The following sections are thin or absent in the source document for this element. They will be filled by enrichment passes (NIST atomic, OSHA/NIOSH safety, USGS / IAI environmental).