TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The zinc ammonia complex solution comprises a zinc ammonia carbonate complex, and step (b) at least partially removes carbon dioxide from the mixture. The zinc source is zinc oxide, zinc carbonate, electric arc furnace dust or zinc ash. The coating further comprises zinc oxide and/or zinc carbonate. The substrate particles are silica, clay, kaolin, talc, aluminum silicate, and/or calcium carbonate. The organic zinc salts comprise: a zinc salt of a fatty acid; a mixture of zinc salts of one or more 7-18C aliphatic carboxylic acids and one or more aromatic carboxylic acids; zinc 2-mercaptobenzothiazole; or a zinc dithiocarbamate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organic acids or its salt comprises a salt of an organic acid, and the method further comprises preparing the salt of the organic acid by reacting the organic acid with sodium hydroxide, potassium hydroxide, or an ammonium hydroxide. The organic acids are 7-24C aliphatic carboxylic acids, aromatic carboxylic acids, and 2-mercaptobenzothiazole. The organic acids comprise a mixture of one or more 7-24C aliphatic carboxylic acids and one or more aromatic carboxylic acids. The ammonium hydroxide solution comprises ammonium hydroxide (1-10 wt.%). The amine comprises a disubstituted amine of dialkylamines, diarylamines, diaralkylamines, or ethylene diamine. The amine is dimethylamine, diethylamine, dibenzylamine, dibutylamine and ethylenediamine, and the zinc salt is dimethyldithiocarbamate, zinc diethyldithiocarbamate, zinc dibenzyldithiocarbamate, zinc dibutyldithiocarbamate and zinc ethylenebisdithiocarbamate. The organic acids are 7-24C aliphatic carboxylic acids, aromatic carboxylic acids, 2-mercaptobenzothiazole, or substituted dithiocarbamic acids. Preferred Method: The method for preparing organic zinc salt further comprises preparing the zinc ammonia carbonate complex from a zinc source, ammonia or its derivative, and carbon dioxide or its derivative, where the zinc ammonia carbonate complex solution contains zinc (1-15 wt.%), ammonia (1-20 wt.%), and carbon dioxide (0-10 wt.%). The step (b) further comprises heating the mixture at 40-150 degrees C. The isolated organozinc organic zinc salt is insoluble or sparingly soluble in water. The method for preparing organic zinc salt comprises drying the isolated organic zinc salt at 50-200 degrees C. In the method for preparing organic zinc salt, mixing the zinc ammonia complex solution with the organic acids further comprises generating the organic acids in situ. In the method for preparing organic zinc salt, mixing the zinc ammonia complex solution with the organic acids and generating the organic acids in situ comprises: dissolving an amine in water, adding an ammonium hydroxide solution to form a second solution, adding a zinc ammonia carbonate complex or its solution to the second solution; optionally, adding one or more emulsifiers; and adding carbon disulfide at a temperature of less than 40 degrees C to form a mixture and agitating the mixture to precipitate the zinc salt. The method for preparing organic zinc salt comprises adding the zinc ammonia carbonate complex or its solution to the second solution after adding the carbon disulfide. In the method for preparing organic zinc salt, adding a zinc ammonia carbonate complex or its solution comprises adding a zinc source, ammonia, and optionally carbon dioxide to form the zinc ammonia carbonate complex. The method for making coated particles further comprises preparing the zinc ammonia carbonate complex from a zinc source, ammonia or its derivative, and carbon dioxide or its derivative, where the mixture contains zinc (1-15 wt.%), ammonia (1-20 wt.%), and carbon dioxide (0-10 wt.%). In the method for making coated particles, mixing step comprises spraying the mixture on the substrate particles. Preferred Composition: The composition comprises: a rubber; one or more organic zinc salts made by the method, (0.1-4 phr of the rubber); optionally, a filler material of silica, clay, kaolin, talc, aluminum silicate, calcium carbonate, and/or carbon black; and optionally, a silane coupling agent and/or other rubber processing aid.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The rubber comprises a natural rubber, and/or a synthetic rubber. The rubber comprises a natural rubber, a synthetic rubber, and/or rubber latex. ACTIVITY - Fungicide; Pesticide.    MECHANISM OF ACTION - None given.    EXAMPLE - Ammonia gas (63 g) and carbon dioxide gas (29 g) were added into water (386 g), then zinc oxide (65 g) was added into the solution, stirred well and the zinc oxide was completely dissolved into the solution. The solution contained 9.56 wt. % zinc with a pH of 11.56. Stearic acid (450 g) was added to the solution and stirred well. The stearic acid was completely dissolved in the solution. The solution was heated in a laboratory reactor with agitation and a water cooled condenser to recover the evaporated ammonia and carbon dioxide. The solution was boiled at around 65 degrees C and as it was boiling, white gelatinous precipitates were formed. As water level was dropped, 1500 ml more of water was added to the mixture. When most of the ammonia was boiled out, the temperature was increased to 100 degrees C and the pH was dropped to 9.27. The mixture was cooled to 25 degrees C to precipitate other slightly soluble organic zinc salts which may be in the solution, then filtered and worked up to give zinc stearate.