Actinium(III) sulfide explained

Actinium(III) sulfide is the radioactive compound of actinium with the formula Ac₂S₃. This salt was prepared by heating actinium(III) oxalate at 1400°C for 6 minutes in a mixture of carbon disulfide and hydrogen sulfide. The result was conformed to be actinium(III) sulfide by x-ray diffraction.^[1]

Notes and References

1. Book: the University of Michigan . The Preparation of Actinium Compounds . 1948 . U.S. Atomic Energy Commission, Technical Information Division . 4 . 16 April 2021 . English.