METHOD OF PRODUCING AMORPHOUS TRICALCIUM PHOSPHATE Russian patent published in 2020 - IPC C01B25/32 C01F11/00 A61L27/12 A61L27/32 

Abstract RU 2730456 C1

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical industry in production of biocompatible materials and medicine. Method of producing amorphous tricalcium phosphate involves reacting an aqueous solution of calcium chloride and diammonium phosphate in excess ammonia at temperature of 20–25 °C for 10–15 minutes, filtering the obtained precipitate and washing it with water from chlorine ions. After drying the residue is dried at 125–130 °C for 10–15 minutes.

EFFECT: invention reduces duration and simplifies production of amorphous tricalcium phosphate which does not contain impurity of crystalline defective calcium hydroxylapatite.

1 cl, 1 tbl, 5 ex

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RU 2 730 456 C1

Authors

Belyaeva Olga Dmitrievna

Berkovich Olga Aleksandrovna

Korelskaya Natalya Arkadevna

Zaslavskij Denis Vladimirovich

Ivanov Andrej Mikhajlovich

Dykman Arkadij Samuilovich

Fedortsova Elena Vladimirovna

Dates

2020-08-24Published

2019-11-20Filed