Abstract: An improved, highly efficient method for the preparation of flecainide acetate (I) or other pharmaceutically acceptable salts of flecainide. The method involves a technique for preparing the staring material 1,4-bis (2,2,2-trifuoroethoxy) benzene (III) in high yields by reacting 4-fluoro-1-bromobenzene (VI) with TFE in the presence of a base and a copper-containing catalyst.

Abstract: A process for recycling waste paper is disclosed in which an alkali metal Kurrol's salt, preferably potassium Kurrol's salt, is added to the process water.

Abstract: Novel processes are provided for producing anhydrous dicalcium phosphate (DCPA) and the gamma and beta forms of calcium pyrophosphate (CPP) from the reaction of phosphoric acid and lime. Dentifrice compositions containing the resultant phosphates are also disclosed.

Abstract: A weed removing tool having a longitudinally extending member to which a blade is affixed at one longitudinally spaced end thereof, with a rake assembly being pivotally mounted on the member adjacent to and coextensive with the blade. Mounted on the rake assembly is an actuator arrangement disposed for selectively pivoting a rake included in the rake assembly toward and away from the blade in order to selectively engage and grip a weed to be removed in cooperation with the blade. By this arrangement, the blade is first inserted into the ground ajacent a weed to be removed, with the rake being pivoted toward the blade in order to grippingly engage the weed, and the weed subsequently removed by pulling the blade out of the ground.