二氯苯(DDM)是一种驱绦虫化合物,同时具备抗微生物作用。对绦虫、原生动物、真菌和细菌均有活性。
化学性质本品为红棕色液体,相对密度(20℃)1.11~1.16。其固体产品为白色结晶,熔点178℃。
用途在工业中用作杀生剂,对细菌、真菌、藻类和酵母菌均有较高活性。广泛应用于化肥、石油化工、炼油、冶金等行业冷却循环水处理。当用量为50~100g/m³时,24小时杀菌率可达99%以上。亦可作为防雾剂用于纸浆、木材等。
用途作杀菌灭藻剂,是法国“G-4”杀菌剂的主要成分之一。“G-4”由29%双氯酚、5%氢氧化钠、6%乙二醇、59%水和1%对氯苯酚配制而成。使用时通常加入适量的氢氧化钠,使其以单钠盐形式存在。在大型化肥厂冷却水系统中使用,当pH值为7.8-8.2时,加入50-100ppm G-4,24小时后杀菌率超过98%;加入100ppm时,杀菌率一直保持在99.65%以上,药效较长。双氯酚也用于农业、医药和肥皂制造中作为杀菌剂,并且也是一种抗蠕虫药物。
生产方法由对氯苯酚与甲醛反应制得。缩合反应在溶剂甲醇(或乙醇)中进行,以硫酸为催化剂,在-5℃以下温度下反应。另一种工艺方法使用分子筛作催化剂,在110℃条件下进行缩合反应。
生产步骤如下:首先将溶剂乙醇和催化剂量的浓硫酸加入反应釜,冷却至-10~0℃,开始滴加30kg甲醛,反应6小时后静置、过滤、干燥,最终得到固体产品。
类别农药
毒性分级中毒
急性毒性口服 - 大鼠 LD50: 1506毫克/公斤;小鼠 LD50: 1000毫克/公斤
刺激数据皮肤 - 兔子 500毫克/24小时 轻度;眼睛 - 兔子 0.05毫克/24小时 重度
可燃性危险特性燃烧产生有毒氯化物气体
储运特性库房通风低温干燥,与食品原料分开储运
灭火剂干粉、泡沫、砂土
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
亚甲基二苯酚 | Bis(2-hydroxyphenyl)methane | 2467-02-9 | C13H12O2 | 200.237 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 4-Chloro-2-[[5-chloro-3-[(5-chloro-2-hydroxyphenyl)methyl]-2-hydroxyphenyl]methyl]-6-[(5-chloro-2-hydroxyphenyl)methyl]phenol | 78563-28-7 | C27H20Cl4O4 | 550.265 |
—— | 4,11,18,25-tetrachloro<14>metacyclophane-7,14,21,28-tetrol | 127759-83-5 | C28H20Cl4O4 | 562.276 |
—— | bis-(5-chloro-2-methoxy-phenyl)-methane | 7569-57-5 | C15H14Cl2O2 | 297.181 |
—— | dichlorodihydroxy-benzophenone | 6178-89-8 | C13H8Cl2O3 | 283.111 |
亚甲基二苯酚 | Bis(2-hydroxyphenyl)methane | 2467-02-9 | C13H12O2 | 200.237 |
—— | 2,10-Dichloro-12H-dibenzo |
54246-80-9 | C14H10Cl2O2 | 281.138 |
—— | 4,4'-dichloro-6,6'-diiodo-2,2'-methanediyl-di-phenol | —— | C13H8Cl2I2O2 | 520.92 |
—— | 5-chloro-3-(5-chloro-2-hydroxy-benzyl)-2-hydroxy-benzyl alcohol | —— | C14H12Cl2O3 | 299.153 |
—— | 5,5'-dichloro-2,2'-dihydroxy-3,3'-bis(hydroxymethyl)diphenylmethane | 40542-32-3 | C15H14Cl2O4 | 329.18 |
溴氯芬 | 6,6'-dibromo-4,4'-dichloro-2,2'-methanediyl-di-phenol | 15435-29-7 | C13H8Br2Cl2O2 | 426.919 |
—— | 6,6'-diamino-4,4'-dichloro-2,2'-methanediyl-di-phenol | 57548-10-4 | C13H12Cl2N2O2 | 299.156 |
—— | 2,2'-diacetoxy-5,5'-dichloro-diphenyl-methane | 56186-92-6 | C17H14Cl2O4 | 353.202 |
—— | 2,20-Dichloro-6,7,9,10,12,13,15,16-octahydro-22H-dibenzo[n,q][1,4,7,10,13]pentaoxacyclo-octadecin | 74856-51-2 | C21H24Cl2O5 | 427.325 |
—— | bis-(2-carboxymethoxy-5-chloro-phenyl)-methane | 191273-39-9 | C17H14Cl2O6 | 385.201 |
—— | 2,10-Dichloro-6-phenoxy-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-12-1 | C19H13Cl2O4P | 407.19 |
—— | 2,10-dichloro-6-(4-chlorophenoxy)-12H-dibenzo |
138650-18-7 | C19H12Cl3O4P | 441.635 |
—— | 2,10-Dichloro-6-o-tolyloxy-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138678-31-6 | C20H15Cl2O4P | 421.216 |
—— | dimethyl 1,1'-(2,2'-methylenebis(4-chlorophenylene))bis(oxy)diacetate | —— | C19H18Cl2O6 | 413.254 |
—— | 2,10-Dichloro-6-p-tolyloxy-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138678-32-7 | C20H15Cl2O4P | 421.216 |
—— | 4,4'-dichloro-6,6'-bis-dimethylaminomethyl-2,2'-methanediyl-di-phenol | 102008-00-4 | C19H24Cl2N2O2 | 383.318 |
—— | 2,10-Dichloro-6-(2,6-dimethyl-phenoxy)-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-16-5 | C21H17Cl2O4P | 435.243 |
—— | 2,10-Dichloro-6-m-tolyloxy-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-13-2 | C20H15Cl2O4P | 421.216 |
—— | 4-[2-(2-carboxymethoxy-5-chloro-benzyl)-4-chloro-phenoxy]-butyric acid | —— | C19H18Cl2O6 | 413.254 |
—— | 2,10-Dichloro-6-(4-chloro-3-methyl-phenoxy)-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-19-8 | C20H14Cl3O4P | 455.662 |
—— | 2,10-Dichloro-6-(3,5-dimethyl-phenoxy)-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-15-4 | C21H17Cl2O4P | 435.243 |
—— | 2,2'-diethoxy-5,5'-dichloro-benzophenone | 101571-55-5 | C17H16Cl2O3 | 339.218 |
—— | 2-[2-(2-carboxymethoxy-5-chloro-benzyl)-4-chloro-phenoxy]-2-methyl-propionic acid | —— | C19H18Cl2O6 | 413.254 |
—— | 2,10-Dichloro-6-(2-chloro-phenoxy)-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-17-6 | C19H12Cl3O4P | 441.635 |
3-[(3-羧基-5-氯-2-羟基苯基)甲基]-5-氯-2-羟基苯甲酸 | 5,5'-dichloro-2,2'-dihydroxy-3,3'-methanediyl-di-benzoic acid | 6342-09-2 | C15H10Cl2O6 | 357.147 |
—— | 2,2'-dihydroxy-3,3'-diacetyl-5,5'-dichlorodiphenylmethane | 60011-06-5 | C17H14Cl2O4 | 353.202 |
—— | 2,10-Dichloro-6-(3,4-dimethyl-phenoxy)-12H-5,7-dioxa-6-phospha-dibenzo[a,d]cyclooctene 6-oxide | 138650-14-3 | C21H17Cl2O4P | 435.243 |
—— | [2-(2-benzyloxycarbonylmethoxy-5-chloro-benzyl)-4-chlorophenoxy]-acetic acid methyl ester | —— | C25H22Cl2O6 | 489.352 |
—— | 5,5'-Dichlor-2,2'-bis-carboxymethoxy-benzophenon | 6432-08-2 | C17H12Cl2O7 | 399.184 |
—— | 2,10-dichloro-12H-dibenzo[d,g][1,3]dioxocin-6-carboxylic acid | 30910-26-0 | C15H10Cl2O4 | 325.148 |