Aminomethylenephosphonic acid solutions

Details Aminomethylenephosphonic acid solutions Aminomethylenephosphonic acid solutions

1986-04-24

1988-03-01

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

047284609

ABSTRACT:
Aqueous solutions of aminomethylenephosphonic acid selected from diethylenetriaminepenta(methylenephosphonic acid), diethylenetriaminetetra(methylenephosphonic acid), diethylenetriaminetri(methylenephosphonic acid) and mixtures thereof are stabilized against crystallization of said aminomethylenephosphonic acid by including non-oxidizing mineral acid in such solutions in an amount stoichiometrically equivalent to at least 10% hydrochloric acid by weight of the solution.

REFERENCES:
patent: 3974090 (1976-08-01), Mitchell
patent: 4477390 (1984-10-01), Ledent et al.
patent: 4548757 (1985-10-01), Wevers et al.
patent: 4615840 (1986-10-01), Ledent et al.

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