Overview
Diuron is a substituted urea herbicide first registered in 1954. As a photosynthesis inhibitor, it blocks electron transport in Photosystem II, making it effective against broadleaf weeds and grasses. The compound shows moderate persistence in soil, with degradation primarily through microbial action. In industrial contexts, diuron serves dual purposes: as an agricultural herbicide for crops like cotton and sugarcane, and as an antifouling agent in marine paints and cooling water systems. Its global market is valued at approximately $200 million annually, with major producers in China, India, and Europe.
Physical and Chemical Properties
Diuron crystallizes as odorless white needles with a density of 1.48 g/cm³. The compound demonstrates thermal stability up to 150°C but decomposes at higher temperatures, releasing toxic gases including nitrogen oxides and hydrogen chloride. Its low water solubility (42 mg/L) contributes to soil persistence, while moderate vapor pressure (1.1×10⁻⁶ Pa at 25°C) limits volatility. Diuron shows strong adsorption to organic matter in soil (Koc 480-815 mL/g), reducing leaching potential but requiring incorporation for optimal herbicidal activity.
Main Applications
In agriculture, diuron is applied pre-emergence at 1-4 kg/ha for weed control in cotton, citrus, and vineyard systems. Formulations include wettable powders (WP), water-dispersible granules (WG), and flowable concentrates (SC). Industrial uses include: antifouling in marine paints (0.5-2% concentration), algicide in cooling towers (0.1-0.5 ppm), and vegetation control on railways and utility rights-of-way. Recent innovations include microencapsulated formulations for reduced environmental impact and combination products with diquat for aquatic weed management.
Safety and Storage
Diuron is classified as Acute Toxicity Category 4 (harmful if swallowed) and causes serious eye irritation. Chronic exposure risks include potential carcinogenicity (EPA: Likely Human Carcinogen) and endocrine disruption. Storage requires sealed containers in ventilated areas below 30°C, separated from foodstuffs. Spill management involves containment with inert absorbents (vermiculite or sand), avoiding water flushing. Personal protective equipment (PPE) should include nitrile gloves, goggles, and respiratory protection during handling. Shelf life typically exceeds 2 years when stored properly.
B2B Procurement Guide
Technical grade diuron (≥98% purity) dominates bulk purchases. Key specifications include: moisture content (<0.5%), insoluble matter (<0.1%), and particle size distribution (D90 <45μm for WP formulations). Procurement should verify: REACH registration status (EU), EPA establishment number (US), and local regulatory approvals. MOQs from Chinese manufacturers typically start at 1 metric ton, with 25kg woven bags being the standard packaging. Third-party lab analysis is recommended for impurity profiling, particularly for 3,4-dichloroaniline (DCA) content which affects product stability.
Related Manufacturers
- 主营：5-二甲基吡唑、N-油酰基肌氨酸、环己基苯、敌草隆、β-溴苯乙烷、乙基纤维素、硫酸烟酰苯胺、2-辛烯基琥珀酸酐、菜籽油甲酯、5二硝基水杨酸、辛酸镁、辛酸钾、有机硅季铵盐、萘钠处理液
- 主营：球虫酯、2-己二醇、防黄剂HN-130、敌草隆、吲哚原料、靛红酸酐、十一烯酸锌、4-丁二醇、2-丙二醇、氢化松油醇、羟乙甲纤维素、龙胆紫、二甲基乙烯脲、对叔戊基苯酚、3-二羟基丙酮、乙氧酰胺苯甲酯
- 主营：硫酸铝、硫酸铁、除草剂、敌草隆、芥花籽油、全氟萘烷、桂花精油、乳清酸锂、分析试剂、无色液体、香精香料、农药中间体、淡黄色液体、巯基乙酸钙、化工催化剂、乙酰基六肽、医药中间体、表面活性剂、香料化合物、草酸二水合物、三硫代碳酸钠、二硫氰基甲烷、甲基天冬氨酸、精胺四盐酸盐、苯乙烯化苯酚、硫脲类促进剂
- 主营：1783-96-6、9003-11-6、谷氨酸、5466-06-8、柠檬酸、4767-03-7、4559-86-8、6920-22-5、3493-12-7、3697-42-5、9012-76-4、7601-54-9、3934-20-1、精氨酸、2687-91-4、1119-34-2、2744-50-5、2971-90-6、7462-74-0、4337-33-1、碘化锂、dl-泛醇、1984-06-1、6440-58-0、6020-87-7
- 主营：对二苯甲酸二肼
- 主营：杀菌剂
- 主营：纸板桶、编织袋、胞苷酸、腺苷酸、磷酸镁、99%吲哚、藜麦肽、甲酰胺、溴化钾、腺苷、增稠剂、樟脑粉、三醋酸纤维素、酸辛酯、99%曲酸、2-氯嘧啶、6-己内酯、液状石蜡、焦谷氨酸、草酸氢铵、邻苯二甲、乙酸癸酯、尿苷酸二钠、盐酸羟胺、乳酸菌素
- 主营：聚丙烯酰胺、聚合氯化铝、片碱、敌草隆、纯碱、硫酸亚铁、磷酸、元明粉、乙二醇、工业盐、次氯酸钠
- 主营：杀菌剂、苯噻氰、乙烯双、敌草隆原药、助磨剂、1120-44-1、10026-11-6、硫酮脲pm、五氟苯基、硫氢化钠、三苯碳四、吡咯苯基、噻唑啉酮、三氯苯基、2-叔丁氨基、聚六亚甲基、氧化铪粉末、苯并异噻唑、胺基钛二氯、茂金属催化剂、船舶防污漆、防污剂、四氯化锆、美托咪定、乙烯氧氯化催化剂、丙烯酸自抛光树脂
- 主营：农业氮肥、尿素粉、亚氯酸钠、敌草隆原料、碳酸铵、氯化石蜡、亚磷酸、氨水、磷酸一铵、硼酸、硫酸钾、硼砂
- 主营：十一烯酸锌、周位酸、鱼藤酮、敌草隆、158474-72、对叔戊基苯酚、二醋酸纤维素、大茴香酸钠、肉豆蔻酸甲酯
- 主营：溴代吡咯腈、芥酸、异山梨醇、敌草隆、异山梨醇二甲醚、四氯苯醌、对氨基苯乙酸、四乙酰核糖、对氨基苯甲酸、2,6-二氟苯胺、蒽醌
- 主营：除草剂、杀虫剂、杀菌剂
- 主营：香芹酚、抗氧化增香剂、DCHP、敌草隆97、2-咪唑烷酮、对叔戊基苯酚、柠檬烯、五氯硫酚、愈创木酚、邻硝基苯甲醛、二醋酸纤维素、氢化油、硅烷偶联剂、润滑剂、脱模剂、分散剂、消泡剂、阻燃剂、抗氧剂、增塑剂、附着力促进剂、杀菌剂、增稠剂、乳化剂、防老剂、缓蚀阻垢剂
- 主营：硫代癸烷、化学试剂、总镍试剂、敌草隆分析纯、棕榈酸甲酯、正辛酸甲酯、仲丁基氯化镁、正庚基溴化镁、仲丁基溴化镁、棕榈酸异丙酯
- 主营：对照品、科研实验、试剂盒、敌草隆、多糖、安石榴苷、儿茶素、绿原酸、尿石素、人参皂苷、花青素、维生素、异鼠李素、甘草系列、人参系列、补骨脂系列、雷公藤系列、黄芩系列、柴胡系列、丹参系列、酸枣仁系列、重楼系列、大黄系列、五味子系列、化合物、黄芪皂苷系列
- 主营：啶嘧磺隆、砜嘧磺隆、烟嘧磺隆、敌草隆、三氟啶磺隆、呋虫胺、辅酶A、IPTG、二氯吡啶酸、氨氯吡啶酸、氯氨吡啶酸、脱落酸、阿维菌素、邻苯二甲醛
- 主营：1-氨基哌啶、对甲基苯丙酮、金属钙、敌草隆、氢化钙、间苯三酚、氢化锂、五氧化二钒、偏钒酸铵、己二酸二钠、氢化锂铝、丁二酮肟、硫氰酸铅、乙醇钠、1-萘甲酸
- 主营：甲磺草胺、二氯喹啉酸、十三吗啉、敌草隆、苯甲酸酐、4-乙烯二氧噻吩