Organotin fluorides having controlled morphology

Details Organotin fluorides having controlled morphology Organotin fluorides having controlled morphology

1989-10-16

1991-01-22

Prescott, Arthur C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556103, C07F 722

Patent

active

049872451

ABSTRACT:
Organotin fluorides, notably dialkyltin difluorides, well adpated for the manufacture of coated insulating glassware and having controlled morphology, are prepared by reacting a stannic compound, e.g., an organotin chloride, with a fluorinating agent, e.g., hydrofluoric acid or an ammonium fluoride, admixing the organotin fluoride thus produced in a solvent that is immiscible with the fluorinating agent but which solubilizes the organotin fluoride therein, subsequently or simutaneously heating the solvent medium to a temperature sufficient to release unreacted fluorinating agent therefrom, and cooling such solvent medium and thereby crystallizing therefrom an organotin fluoride having a controlled morphology, e.g., well defined platelets having a characteristic DTA spectrum.

REFERENCES:
patent: 4036866 (1977-07-01), Larkin et al.
patent: 4254046 (1981-03-01), Franz et al.
patent: 4322363 (1982-03-01), Wagner
patent: 4510095 (1985-04-01), Holland et al.
patent: 4694091 (1987-09-01), Kerherve et al.

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