Aggregate crystals of phosphoric acid/lysine/magnesium composite salt and process for producing the same

摘要

Spherical aggregate crystals of a phosphoric acid/lysine/magnesium composite salt represented by formula (1): RaMgbHcPO4.(H2O)n(1) where R is a lysine cation; a is 0.15 to 1.0; b is 1.0 to 1.42; c is 0 to 0.3; n is 0 to 10; and a+(2xb)+c=3.