Research and development of a novel inorganic copper fungicide copper oxychloride | 新型无机铜基杀菌剂王铜的研制与开发

中国人. 以氯化铜和硫酸铜为主要原料，通过化学方法合成王铜．利用X射线衍射仪对有效成分进行了确证．根据试样悬浮性和稳定性优化了助剂配方，制备了300g/L王铜悬浮剂，提出了制备方法，生产工艺及质量控制指标．对300g／L王铜悬浮剂有效成分含量、悬浮率、pH、筛析及贮存稳定性等性能指标及毒性、残留、对环境安全性评价与药效试验等进行了试验分析，结果表明，该配方产品悬浮率达95％以上，pH5．5～6．8，冷、热贮稳定，各项指标符合悬浮剂的要求．产品低毒、低残留，对非靶标生物安全，对柑橘溃疡病有较好的防治效果．该杀菌剂不诱发红蜘蛛大猖獗，病菌不易产生抗药性，使用方便，是传统杀菌剂“波尔多液”的理想替代品．[著者文摘]

英语. A copper oxychloride was obtained from cupric chloride or copper sulfate by chemical synthesis, and the effective component was analyzed with X-ray diffraction detector. The formulation of auxiliary agent was optimized according to suspensibility and stability for preparation of 300 g/L copper oxyehloride aqueous suspension. The preparation method, production technology and control index of quality to copper oxyehloride were put forward. The quality index of 300 g/L copper oxychloride was evaluated including active component content, suspensibility, pH, screen analysis, stability of storage, efficacy, toxicity, residue and environmental safety of 300 g/L copper oxychloride. The results showed that the index was up to the expectations,including over 95% suspensibility, pH 5.5-6.8 and the heat and cold stability. The copper oxychloride was a safe, low toxic, low residual and environment-friendly fungicide, and kept good control effects against citrus canker. The copper oxychloride is an ideal replacement of traditional fungicide Bordeaux mixture,as it is convenient to use and not easy to induce chemical resistance or rampant occurrence to spider mites.