C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/68
C01B 25/32 (2006.01) A61K 8/24 (2006.01) A61Q 11/00 (2006.01) C01B 25/34 (2006.01)
Patent
CA 1090531
STABILIZATION OF CALCIUM HYDROGEN PHOSPHATE DIHYDRATE. ABSTRACT OF THE DISCLOSURE: Dicalcium phosphate dihydrate is stabilized with the use of dimagnesium phosphate trihydrate, the dicalcium phosphate dihydrate being precipitated by reacting a calcium compound with an aqueous solution of orthophos- phoric acid or a phosphoric acid salt. More specifically, 1 to 50 weight% based on dicalcium phosphate dihydrate, of dimagnesium phosphate trihydrate is co-precipitated with the dical- cium phosphate dihydrate, or subsequently on precipitated di- calcium phosphate dihydrate by reacting a magnesium salt with a solution of orthophosphoric acid or of a phosphoric acid salt in the presence of a basic compound.
288991
Dany Franz-Josef
Kandler Joachim
Prell Hedwig
Wortmann Joachim
Ziegler Hans W.
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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