Organic salts and mixtures thereof, organic salt coated particles, methods of preparing organic salts and organic salt coated particles, and various applications of such coated particles, including applications in. rubber, other polymeric materials, and pesticides and/or fungicides are disclosed. As compared to rubber formulations without organic salt, formulations with organic salts including the present coated particles may have lower Mooney viscosity and lower minimum torque, improved dispersability, a higher modulus at 100% and/or at 300% elongation, a higher tensile strength, better aging resistance, better abrasion resistance, and/or lower heat buildup. Thus, products containing the present coated particles may enjoy similar or better properties than comparative products that include a conventional filler and/or organic salts per se, and the present coated particles may result in cost savings for the corresponding product formulations. The need for a silane coupling agent may also be reduced or eliminated
