Picloram
명명법
NOMENCLATURE
일반명
IUPAC 명 4-amino-3,5,6-trichloropyridine-2-carboxylic acid; 4-amino-3,5,6-trichloropicolinic acid
화학문헌명 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid
카스넘버 1918-02-1
이시넘버
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이화성질
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)

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Testing itemsStandard(w/w)
Content
Loss of drying
Water
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