Abstract: An inflatable assembly comprising a device having a body, with a neck terminating in a free end, with an opening extending from the free end and communicating with the body which is capable of being inflated. Closure means is provided and includes an adhesive element mounted on the neck and protruding or extending beyond the free end thereof, with the closure means adapted to be moved from an open position in which a tube extends into the neck such that a gas entering the device through the tube inflates the body to a closed position in which the adhesive element which extends beyond the free end is sealed when the tube is removed from the device. Guide means extends intermediate the tube and the adhesive element, and is adapted to be retracted from the closure means in conjunction with the tube such that the adhesive element when compressed is sealed together beyond the free end and the closure means is in its closed position so as to obtain a sealing of the neck to prevent gas from escaping therethrough.

Abstract: Addition of sodium naphthaleneformaldehyde sulfonate to phosphate rock slurry in manufacture of phosphoric acid by the wet process permits reduction of the viscosity and/or water content of the slurry so that increased pumpability of the slurry is obtained.