Stable isotope ⁴⁰K with enrichment up to 8.90 at.%, chemical purity > 98.00%, chemical form: chloride. Applications: primordial long-lived radionuclide (T½ ≈ 1.25 billion years): potassium–argon dating, calibration, research. Every lot comes with a passport stating its isotopic and chemical composition.
| Isotope | ⁴⁰K |
| Element | Potassium (K) |
| Atomic number (Z) | 19 |
| Mass number (A) | 40 |
| Enrichment, at.% | 8.90 |
| Chemical purity | > 98.00% |
| Chemical form | chloride |
| Documents | lot passport with isotopic and chemical composition |
| Supply | Russia, CIS, export (subject to export control) |
Primordial long-lived radionuclide (T½ ≈ 1.25 billion years): potassium–argon dating, calibration, research.
Enrichment and chemical purity are given according to the producer’s specification; the exact composition of a lot is stated in its passport. Availability, packaging and price on request. Export of isotope products is subject to export control requirements.