Abstract: In a preferred embodiment, a high-yield method producing novel water soluble triazone compositions having a typical analysis as follows, percentages being based on the total weight of the reaction product: urea at about 17.5%; MMU at about 3.4%; MDU at about 1.0%; HMT at about 4%; water soluble triazone at about 48%; produced by a novel method in which ammonia/HCHO mole ratio is about 0.3, and in which percentage ammonia added and reacted during the initial reaction is about 4.5% by weight of total reactants, initial cooking is for about 45 minutes, followed by final cooking for about 10 minutes, both initial and final cooking are at about 90 degrees Centigrade, at a nitrogen content of about 28%, at an initial cooking-pH maintained immediately after ammonia addition, at about pH 9, and at a lower pH during the final cooking resulting from termination of adding further potassium hydroxide, the optimum mole ratio during the process, of reactants urea, formaldehyde and ammonia, for example, being about 0.9:1:0.

Abstract: In a preferred embodiment, a high-yield method producing novel water insoluble triazone compositions with a typical analysis, prior to separation of the insoluble triazone crystals, has components in amounts as follow, percentages being based on the total weight of the reaction product; unreacted urea at about 10%, total percentage of nitrogen from urea at about 4.7, with maximum total nitrogen at about 30 percent, with the yield of triazone at about 75 percent, produced by a novel method in which urea or substituted urea and pH adjusted to and maintained at about pH 9.0 by addition preferably of potassium hydroxide 45% aqueous solution, while mixing thoroughly and heating for about one hour at a temperature of about 85 degrees Centigrade, however keeping below the boiling point of the aldehyde, utilizing water or other solvent such as alcohol or other equivalent to maintain fluid conditions.