Potassium chloride particle size distribution

The humidity of the product is not the only cause of caking. One particular t5 e of material may cake to different extents for the same humidity if the particle-size distribution is different [518]. Thus the caking propensity of potassium chloride increases sharply if the diameter of the particles in the powdered product is smaller than 100 M, i.e., for the same range of sizes as those for which the adhesive and autohesive forces exceed the weight of the... 

The snow and frost described are almost assuredly of different morphology, particle size, and size distribution than the starting material Hannay and Hogarth studied salts such as cobalt chloride and potassium iodide. Incidentally, the reference to the precipitation of the solid is not an Isolated report of nucleation from a supercritical fluid. For example, many other references to snow, fog, fumes, and crystals formed during depressurization of a solution of a solute in a supercritical fluid have been made by researchers studying supercritical fluid solubility phenomena. 

The nature of the surfactant used in the redox polymerization is said to have an effect not only on the average particle size but also the size-distribution, the heat stability of the polymer, the percent solids of the produced lattices, and the stability of compositions involving post-additions to a latex. A recently published seed polymerization recipe prepares the seed in appropriate equipment by adding to 1300 gm of deionized water, 0.15 gm of sodium bisulfite, and various amounts of a surfactant, and 815.0 gm of vinyl chloride. To this mixture is added a solution of 48.0 gm of deionized water, 2.0 gm of 30% aqueous ammonia, and 0.04 gm of potassium persulfate. Then a stream of 7.24 gm of the surfactant Dowfax 2A1 (45%) in 192.76 gm of deionized water is pumped in along with a stream of 399.96 gm of deionized water, containing 0.40 gm of potassium persulfate. This formed the seed latex. 

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