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Moreno, E.
and Brown, W.
(1966),
Solubility of CaHPO4 x 2H2O and formation of ion pairs in the system Ca(OH)2 -H3PO4 -H2O at 35 degrees C::progress report, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.RPT.9382
(Accessed October 8, 2025)