Monuron 灭草隆

请下载《资料收集库-农药电子书》获得更多农药资料。想获得更多更系统的农药资料？想创建自己的农资电子书？请访问 http://www.9ele.com/pesticide.html

灭草隆

CAS：150-68-5
英文名称：monuron
化学名称：3-(对氯苯基)-1,1-二甲基脲；3-(p-chlorophenyl)-1,1-dimethyl-Urea
其他名称：蒙纽郎；
分子式：C9H11N2OCl，
分子量：198.68

monuron

理化性质：白色鳞状晶体。熔点176～177℃。不溶于水，难溶于乙醇、苯等有机溶剂，易溶于卤代烷。对热稳定。

毒性：大白鼠急性口服LD50,3600mg/kg。人口服致死最低量，500mg/kg。小白鼠腹腔注射LD50,1000mg/kg。资料报道，本品有致突变、致畸作用。

作用特点及杀草谱：取代脲类除草剂，灭生性内吸除草剂，也有一定的触杀作用，杀草范围广，除一年生草外，对多年生深根性草也有效，一般作土壤处理。防除葡萄、甘蔗、棉花和其他大田作物中的单子叶和双子叶杂草，如马唐、看麦娘等。

剂型：25％可湿性粉剂，
生产方法：1、用对氯苯胺、光气和二甲胺为原料合成而得。

2、以对氯硝基苯和二甲胺水溶液（33%）为反应底物，以硒为催化剂，三乙胺为助催化剂，经高选择性氧化还原羰基化一步合成灭草隆除草剂。在温度135℃和CO压力3.0 MPa条件下，反应4小时，转化率达到54%以上，灭草隆选择性达到99.5%以上。

生产情况：1951年发现。国内生产企业：浙江新农化工股份有限公司；淄博凤宝化工有限公司；鹤岗市清华紫光英力农化有限公司；江苏快达农化股份有限公司

Refer to <docbook-pesticides> for more data. Want more and better data of pesticides? Create your own ebook? Please visit: http://www.9ele.com/pesticide_en.html

monuron; monuron-TCA (common name).
Superseded record no. 1298

CAS RN [150-68-5] monuron (i); [140-41-0] monuron-TCA (ii). Herbicidal activity of monuron reported by H. C. Bucha & C. W. Todd (Science, 1951, 114, 493). Introduced by E. I. du Pont de Nemours and Co., and as the trichloroacetate by Allied Chemical Corp., Agricultural Division (later Hopkins Agricultural Chemical Co.). IUPAC name 3-(4-chlorophenyl)-1,1-dimethylurea (i); 3-(4-chlorophenyl)-1,1-dimethyluronium trichloroacetate (ii) CA name N '-(4-chlorophenyl)-N,N -dimethylurea (i); trichloroacetic acid compound with N '-(4-chlorophenyl)-N,N -dimethylurea (1:1) (ii); 3-(p -chlorophenyl)-1,1-dimethylurea (i). Development codes GC-2996 (Allied) (for (ii)) M.f. C9H11ClN2O (monuron); C11H12Cl4N2O3 (monuron-TCA) Mol. wt. 198.7; (monuron-TCA 362.0) Form Monuron and monuron-TCA are crystalline solids. M.p. 174-175 ºC; (monuron-TCA 78-81 ºC) V.p. 0.067 mPa (25 ºC) KOW logP = 1.46, 2.12 (Agchem. Desk Ref. ) S.g./density 1.27 (20 ºC) Solubility Monuron: In water 230 mg/l (25 ºC). In acetone 52 g/kg (27 ºC); sparingly soluble in petroleum oils and in polar organic solvents. Monuron-TCA: In water 918 mg/l (room temperature). In 1,2-dichloroethane 400, methanol 177, xylene 91 (all in g/kg, room temperature). Stability Decomposes at 185-200 ºC; rate of hydrolysis at room temperature and pH 7 negligible, but increases at elevated temperatures and under acidic or alkaline conditions.
Biochemistry Photosynthesis inhibitor. Mode of action Total herbicide, absorbed via the roots. Uses It was recommended at 10-30 kg/ha for total weed control in non-crop areas; 5-10 kg/ha for annual maintenance. Monuron-TCA was used at 10-15 kg/ha for total weed control of uncropped areas. Formulation types WP (monuron). Compatibility Acidic in reaction and incompatible with alkaline materials. Products 'Telvar' * ((i)) (DuPont); 'Urox' * ((ii)) (Allied) . Details PM8, Entry 08680.