Abstract: There is described a process for producing a particulate composition comprising the steps of: (a) forming a first dispersion comprising first particles stabilised in a first fluid by a first species in an initial state, the first species changeable between the initial state and a further state, where the initial state provides (directly or indirectly) more stability to the particles within the dispersion than the further state; (b) optionally the step of forming a second dispersion comprising second particles stabilised in a second fluid, miscible with the first fluid, by a second species in the, or another, initial state, the second species also changeable between the, or another ,initial state and the, or another, further state, where said initial state provides (directly or indirectly) more stability to the particles within the dispersion than said further state; (c) after the optional step of mixing the first and second dispersions together if the second dispersion was formed in step b), changing the s

Abstract: A process for preparing a crystal suspension of an organic compound which has a &Dgr;H/RT value (where &Dgr;H is the heat of fusion of the compound, R is the molar gas constant and T is the melting point of the compound) in the range of 1 to 10, the process comprising dispersing a melt of the organic compound in a liquid dispersion medium, typically water, to form an emulsion, typically an oil-in-water emulsion, cooling the emulsion below the melting point of the organic compound and subjecting the emulsion to ultrasonic vibration.

Abstract: A process for preparing a crystal suspension of an organic compound which has a &Dgr;H/RT value greater than 10, the process comprising dispersing a melt of the organic compound in a liquid dispersion medium to form an emulsion, cooling the emulsion below the melting point of the organic compound and subjecting the emulsion to ultrasonic vibration.

Abstract: A smoking material comprising smoke-producing fuel, fortifying nicotine, calcium and/or magnesium carbonate as incombustible filler, at least one water-soluble salt selected to inhibit dissolution of the calcium and/or magnesium carbonate in water, and a phosphate buffer consisting of an acid salt of orthophosphoric acid or of a polyphosphoric acid to maintain the slurry pH at less than 6.