Stabilized cyanamide solutions
AssigneeSuddeutsche Kalkstickstoff-Werke Aktiengesellschaft
InventorStefan Weiss
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Abstract
The storage stability of strong or concentrated, aqueous solutions of cyanamide, even those conventionally stabilized with acid, is enhanced by small amounts of lower alkyl esters of carboxylic acids having preferably a pK.sub.a.sup.25.degree. value of 3.8 or less.
Claims9
An aqueous cyanamide solution of improved stability containing 20% to 80% cyanamide by weight, and at least one stabilizer, said one stabilizer being an alkyl ester of a carboxylic acid dissolved in said solution in an amount of 0.03 to 1.0 percent by weight and effective for enhancing the stability of said cyanamide in said solution during extended storage, said alkyl having up to 8 carbon atoms.
Dependencies are inferred from the claim text.