Selective Noncatalytic Reduction of NO<i>_x</i> Using Ammonium Sulfate

Selective precipitation and purification of monovalent proteins using oligovalent ligands and ammonium sulfate.

This paper describes a method for the selective precipitation and purification of a monovalent protein (carbonic anhydrase is used as a demonstration) from cellular lysate using ammonium sulfate and oligovalent ligands. The oligovalent ligands induce the formation of protein-ligand aggregates, and at an appropriate concentration of dissolved ammonium sulfate, these complexes precipitate. The pu...

Ammonium sulfate – malonic acid aerosols

A study of the phase transition behavior of mixed ammonium sulfate – malonic acid aerosols C. F. Braban and J. P. D. Abbatt Centre for Atmospheric Sciences, Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge, CB2 1EW, UK Department of Chemistry, University of Toronto, Toronto, ON, M5S 3H6, Canada Received: 22 March 2004 – Accepted: 3 May 2004 – Published: 2 June 2004 Co...

Ammonium Chloride and Ammonium Sulfate in Cattle Feedlot Finishing Rations

T WO levels of ammonium chloride or of ammonium sulfate were added to the rations of commercial feeder cattle. The rations were made isonitrogenous, essentially isocaloric and to contain the same level of calcium, phosphorus and salt. Total gains were essentially the same for all lots, varying only 15.6 lb (7.1 kg) over a 112 day feeding period. Feed conversion was increased only on the ration ...

Deliquescence Behavior of Organic/Ammonium Sulfate Aerosol

On the evaporation of ammonium sulfate solution.

Aqueous evaporation and condensation kinetics are poorly understood, and uncertainties in their rates affect predictions of cloud behavior and therefore climate. We measured the cooling rate of 3 M ammonium sulfate droplets undergoing free evaporation via Raman thermometry. Analysis of the measurements yields a value of 0.58 +/- 0.05 for the evaporation coefficient, identical to that previously...