Francium (Fr) in Water Treatment
Quick Answer
Francium (Fr) is an alkali metal with atomic number 87. PubChem lists its standard state as solid and its relative atomic mass as 223.01973.
Francium is not usually treated as the free element in water; the relevant dissolved ion, compound or isotope must be identified first. Treatment selection should follow laboratory speciation and the intended water use.
Interesting Facts
- Francium was the last element first discovered in nature rather than made synthetically.
- It is extraordinarily rare and short-lived; no visible piece of francium has ever been collected.
- Its radioactivity makes isotope-specific investigation essential; ordinary softening claims would be physically irrelevant.
Water-treatment Design Implications
An element name alone is not enough to select treatment equipment. Confirm chemical form or speciation, total and dissolved concentration, pH, alkalinity, competing ions and the product-water target. Send the water-analysis results to Watermart to identify additional testing and shortlist processes before equipment is specified.