毒莠定
Picloram
除草剂
命名
NOMENCLATURE
通用名 毒莠定
国际理论和应用化学联合会名称 4-amino-3,5,6-trichloropyridine-2-carboxylic acid; 4-amino-3,5,6-trichloropicolinic acid
化学摘要名 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid
CAS号 1918-02-1
EC号
控制对象
CONTROL OBJECT
针对作物
控制对象
理化性质
PHYSICAL CHEMISTRY

Composition Tech. is 77.9%. 

Mol. wt. 241.5 

M.f. C6H3Cl3N2O2 

Form Light brown solid, with a chlorine-like odour. 

M.p. Decomposes at c. 190 ºC before melting 

V.p. 8×10-11 mPa (25 °C) 

KOW logP = 1.9 (20 °C, 0.1N HCl, i.e. neutral species) 

S.g./density Bulk density 0.895 (25 °C)  

Solubility In water 0.056 g/100 ml (20 °C); pH of saturated water solution 3.0 (24.5 °C). In hexane <0.004, toluene 0.013, acetone 1.82, methanol 2.32 (all in g/100 ml, 20 °C)..  

Stability Very stable to acids and alkalis, but decomposed by hot concentrated alkalis. Readily forms water-soluble alkali-metal and amine salts. In aqueous solution, decomposed by u.v. irradiation, DT50 2.6 d (25 ºC). 

pKa 2.3 (22 ºC)

应用
APPLICATIONGS
生物化学
作用方式
使用
产品信息
PRODUCT INFORMATION
技术资料标准
Testing itemsStandard(w/w)
Content
Loss of drying
Water
剂型
含量
包装
复配
典型施用量