Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Patent
1983-07-08
1985-01-29
Doll, John
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
423308, C01B 2532
Patent
active
044965273
ABSTRACT:
Dicalcium phosphate dihydrate compositions having improved monofluorophosphate compatibility are prepared by adding pyrophosphoric acid to the dicalcium phosphate dihydrate reactor and terminating the reaction by which the dicalcium phosphate dihydrate is formed at a pH ranging from above about 2.2 to below about 4.9.
REFERENCES:
patent: 2036760 (1936-04-01), Knox
patent: 3012852 (1961-12-01), Nelson
patent: 3294486 (1966-12-01), Cremer et al.
patent: 4312843 (1982-01-01), Monty et al.
Majewski Helmut W.
Sherif Fawzy G.
Via Francis A.
Doll John
Flash Hensley M.
Langel Wayne A.
Stauffer Chemical Company
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