This study evaluated the toxicokinetics of N-[C]methylpyrrolidone ([C]NMP) after intravenous administration (0.1, 1, 10, 100, and 500 mg/kg, in saline solution) or topical application (20 and 40 l/cm; 10 cm, neat) in haired male Sprague-Dawley rats. Whatever the dose, unchanged NMP was intensively distributed into the body with a volume of distribution of 69% of body weight. After this phase, u...

Sonicating pure N-methyl pyrrolidone (NMP) rapidly produces contaminating organic nanoparticles, at increasing concentration with time, as investigated by AFM, as well as UV-vis, IR and NMR spectroscopies. The contamination issue affects carbon nanotube, and likely other nanomaterial, dispersions processed by sonication in organic solvents.

1,3-Butadiene, BD is produced from C4-cut by extractive distillation. The separation of 1,3-Butadiene from C4-cut is not possible through the conventional distillation processes, because several mixtures have consisted of close boiling points constituents and make azeotrope. The BASF extraction distillation process in BD unit of Jam and Amirkabir Petrochemical Company improves the relative vola...

Copper hollow fibers were prepared via dry-wet spinning of a polymer solution N-methylpyrrolidone, Polyetherimide, Polyvinyl Pyrolidone, and copper particles sizes in the range 1–2 µm. To remove template molecules to sinter particles, time calcination was varied 1–4 h at 600 °C. This temperature determined based on Thermal Gravimetric Analysis (TGA), showing completion hydrocarbon removal this ...