Assertion: phosphoric acid's impurity | /r/HasSubevent | the formation of whitlockite
Facets:
Source sentences:
text: Although a publication reports the formation of crystalline β-TCP in aqueous media,19 this result has to be considered with caution, as very often, minor impurities such as magnesium in calcium salts can lead to the formation of whitlockite, a calcium-magnesium phosphate, occurring in nature, isostructural to β-TCP.