Actinium(III) phosphate is a white-colored chemical compound of the radioactive element

actinium Actinium is a chemical element with the symbol Ac and atomic number 89. It was first isolated by Friedrich Oskar Giesel in 1902, who gave it the name ''emanium''; the element got its name by being wrongly identified with a substance An ...

. This compound was created by reacting actinium(III) chloride with

monosodium phosphate Monosodium phosphate (MSP), also known as monobasic sodium phosphate and sodium dihydrogen phosphate, is an inorganic compound of sodium with a dihydrogen phosphate (H2PO4−) anion. One of many sodium phosphates, it is a common industrial chemical ...

. This resulted in the hemihydrate AcPO₄·1/2H₂O and was confirmed by x-ray diffraction. To become anhydrous, it was heated to 700°C, which resulted in a black solid due to impurities.

References

{{inorganic-stub Actinium compounds Phosphates