Abstract: A new and improved polymerization inhibitor composition, its method of manufacture, and its use in stabilizing the distillation of acrylic acid is made possible by the pre-oxygen-activation of N-nitrosophenylhydroxylamine in combination with hydroquinone mono-methyl-ether (often referred to as p-methoxyphenol) whereupon a synergistic performance of these components is disclosed.

Abstract: Metallic salt powder pellets are formed by blending metallic salt powder of aliphatic monocarboxylic acid, with a binder material capable of binding the metallic salt powder under normal bulk handling and transport conditions without altering end use properties of the metallic salt powder, and passing the blended composition through a pellet mill. The metallic salt powder pellets can be handled and transported with greatly reduced risk of generating hazardous dust, and readily disintegrate in conventional blending and mixing apparatus to disperse in a manner similar to unpelletized metallic salt powder.