Melamine; phthalic anhydride; sodium nitrate; chemical agents for leather-removating; PVC processing aids, namely, polyvinylchloride resins; chemical additives, namely, PVC impact modifiers; sodium nitrite; dispersions of plastics for use in the manufacture of lacquers; plasticizers; fertilizers; adhesives for industrial purposes; ammonium nitrate; industrial chemicals; ion exchange resin; unprocessed acrylic resins