10.The new preparation method of Al-Ti-C grain refiner was studied with aluminium ingot,potassium hexafluorotitanate,aluminium powder,hexachloroethane and carbon powder.
14.Isopropyl cinnamylate was synthesized by the esterifiestion of isopropyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.
15.The preparation method of potassium pentaborate (KB5O8) was studied with the replacement reaction between potassium chloride and sodium pentaborate solution.
16.METHODS Sodium tetraphenylboron gravimetric analysis was replaced by highly-accurate nephelometric titrimetry to determine potassium chloride in Compound sodium chloride injection.
17.Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.
18.Rhenate of ammonia, rhenate of potassium, oxide of calcium, oxide of molybdenum, rich-manganese slag, spiegeleisen(containing manganese), lime, lead sulfide, electrode paste.
19.It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.
20.A post chemiluminescence (PCL) reaction was observed when amidopyrine was injected into the reaction mixture of potassium ferricyanide-calcein chemiluminescence (CL) reaction system.