Method for preparing stannous octoate at normal temperature

The invention discloses a method for preparing stannous octoate at normal temperature, which comprises the following steps of: adding isocaprylic acid, refined tin and a catalyst into a reaction container in proportion, slowly adding hydrogen peroxide to promote the reaction of the isocaprylic acid and the refined tin, and synthesizing the stannous octoate in one step; then carrying out liquid-solid separation to obtain a stannous octoate intermediate product; and washing the stannous octoate intermediate product with water, and carrying out reduced pressure distillation to obtain a stannous octoate product. The method has the advantages of short production process flow, no need of temperature rise in the reaction process, high utilization rate of hydrogen peroxide and low production cost. And residual acid and washing water can be recycled, thereby being energy-saving and environment-friendly. Other impurities are not added in the reaction process, and the stannous octoate product produced by the reaction is