Copper based algaecides and aquatic herbicides

Details Copper based algaecides and aquatic herbicides Copper based algaecides and aquatic herbicides

1983-08-09

1985-03-19

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 66, 71 97, A01N 3304

Patent

active

045057346

ABSTRACT:
Basic copper salts such as cupric hydroxide, basic copper chloride, basic copper sulfate and the like with an alkanolamine result in an unexpectedly beneficial composition useful in a method for treating bodies of water to arrest or eliminate the growth of algae and aquatic weeds; a more stable and less corrosive solution is obtained for storage purposes when the insoluble basic copper salts are reacted with an alkanolamine such as trialkanolamine or mixtures or tri- and dialkanolamines to produce a water soluble copper complex of the organic compounds; moreover, the formed complex of the insoluble basic salts provides a higher copper content in the solution formed by the complex when compared to the acid, water soluble copper salts; full effectiveness of the complex has been observed for extended period of time without decrease of soluble copper content.

REFERENCES:
patent: 2446682 (1948-08-01), Whitner
patent: 2734028 (1956-02-01), Domogalla
patent: 3463628 (1969-08-01), Hyde
patent: 3634061 (1972-01-01), Geiger et al.
patent: 3716351 (1973-02-01), Kunkel et al.
patent: 3844760 (1974-10-01), Nelson
patent: 3905797 (1975-09-01), Kunkel et al.
patent: 4324578 (1982-04-01), Seymour et al.

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