Abstract: In one aspect, am anti-corrosion treatment method of reducing internal corrosion of a liquid nitrogen fertilizer holding vessel comprising providing at least one quaternary-amine-comprising compound within the vessel. In another aspect, an anti-corrosion treatment method of reducing corrosion of a liquid nitrogen fertilizer holding vessel comprising: a) providing a substantially insoluble liquid film of a quaternary-amine-comprising compound over a volume of liquid nitrogen fertilizer within a steel vessel; and b) coating internal sidewalls of the steel vessel with the quaternary-amine-comprising compound as the volume of liquid fertilizer increases and decreases within the vessel. In another aspect, an anti-corrosion mixture comprising: a) a liquid nitrogen fertilizer solution; and b) a quaternary-amine-comprising compound within the liquid nitrogen fertilizer solution.

Abstract: Non-corrosive nitrogen containing fertilizer solutions are provided which contain effective levels of corrosion inhibitors which are monocarboxylic acids or polycarboxylic acids, or their salts, or mixtures thereof.

Abstract: The invention encompasses methods of preventing corrosion of vessel sidewalls. In one aspect, the invention includes an anti-corrosion treatment method of reducing internal corrosion of an ammonium phosphate holding vessel comprising providing at least one quaternary-amine-comprising compound within the vessel. In another aspect, the invention includes a treatment method of reducing corrosion of a vessel sidewall surface comprising utilization of a quaternary amine to form a protective layer on the vessel sidewall surface. In another aspect, the invention includes an anti-corrosion treatment method of reducing corrosion of a vessel comprising: a) flowing a liquid into the vessel; b) adding at least one compound to the liquid, the compound being added to a concentration which exceeds the solubility of the compound in the liquid; and c) coating the compound onto an internal surface of the vessel to form a protective layer over the internal surface.

Abstract: A trace amount of a molybdate is disclosed for inhibiting corrosion by concentrated urea-ammonium nitrate fertilizer solutions (UAN) in contact with ferrous metal piping and equipment surfaces. From 10 to 200 ppm of sodium molybdate are blended in a UAN solution containing 20-50 weight percent water for effectively inhibiting corrosion. The corrosion-inhibited UAN solution is non-sludging, non-foaming and essentially free of precipitates.

Abstract: A particulate carrier for airborne suspensions of an active agent. The carrier is formed in situ by contacting a spray containing ammonia, a monoalkylamine or dialkylamine with a spray containing acetic acid and/or sulfur dioxide.

Abstract: The present invention discloses a method of producing as aqueous agricultural composition exhibiting reduced irritation to animals and corrosiveness to materials by admixing an agriculturally acceptable pesticide and an amine-oxide surfactant having the Formula: ##STR1## wherein R.sup.1 is a straight or branched chain about C.sub.6 to about C.sub.20 alkyl or alkenyl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently selected from the group of straight and branched chain lower alkylenyl groups, and a+b+c+d is about 5 to about 25. The compositions exhibit reduced eye irritation to animals and reduced corrosiveness to metals. A method of treating plants is also disclosed.

Abstract: A herbicidal composition comprising a herbicidal cyclohexane dione of partial structure (I): ##STR1## and a surfactant having terminal hydroxy groups in which the hydroxy groups have been replaced by organic blocking groups.

Abstract: Improved liquid, urea-sulfuric acid compositions noncorrosive to stainless steel contain about 5 to about 75 weight percent urea, about 5 to about 85 weight percent sulfuric acid, 0 to about 75 weight percent water and a corrosion inhibiting amount of a cupric ion-containing compound, in which the urea and sulfuric acid together comprise at least about 25 weight percent of the composition, and in which at least a portion of the urea and sulfuric acid are present as monourea sulfate, diurea sulfate or combinations thereof. The compositions may also contain amounts of selected dialkylthioureas sufficient to reduce their corrosivity to carbon steel.

Abstract: Improved, liquid, urea-sulfuric acid reaction product compositions, noncorrosive to carbon steel, contain about 5 to about 75 weight percent urea, about 5 to about 85 weight percent sulfuric acid, 0 to about 75 weight percent water, and a corrosion inhibiting amount of certain dialkylthioureas, in which the urea and sulfuric acid together constitute at least about 25 weight percent of the composition, the urea/sulfuric acid molar ratio of the composition is greater than 2 or less than 1, and a portion of the urea and sulfuric acid are present as monourea sulfate, diurea sulfate, or combinations thereof. The compositions can also contain corrosion inhibiting amounts of one or more cupric ion-containing compounds sufficient to reduce the corrosivity of the composition to stainless steel.

Abstract: A dispersion of up to about 70 weight percent elemental sulfur in an aqueous ammonia solution of at least one metal compound selected from the group consisting of soluble zinc and magnesium compounds has reduced corrosive activity toward ferrous metal. The atomic ratio of zinc and/or magnesium to sulfur is from about 0.0002 to about 0.1 and the mole ratio of ammonia to metal compound is from about 0.1 to about 200.