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  Kow logP ¿Áź¿Ã/¹° ºÐ¹è°è¼ö?? ¹«½¼¶æÀÎÁö ¾Ë·ÁÁÖ¼¼¿ä~~
  ±Û¾´ÀÌ : ÄðÇǽºº¹¼þ¡¦   °íÀ¯ID : pumpys     ³¯Â¥ : 08-06-04 14:03     Á¶È¸ : 25967    

PHYSICAL CHEMISTRY
paraquat dichloride
Composition Not normally isolated from the tech. products, which are >95% pure.
Mol. wt. 257.2 M.f. C12H14Cl2N2 Form Colourless, hygroscopic crystals. M.p. Decomposes at c. 340 ¡ÆC V.p. <1 ¡¿ 10-2 mPa (25 ¡ÆC) Kow logP = –4.5 (20 ¡ÆC) Henry <4 ¡¿ 10-9 Pa m3 mol-1 (calc.) S.g./density 1.24–1.26 (20 ¡ÆC) Solubility In water c. 620 g/l (20 ¡ÆC). Practically insoluble in most organic solvents. Stability Hydrolytically stable in alkaline, neutral and acidic media. Photochemically decomposed by u.v. irradiation in aqueous solution.
paraquat dication
 
 
 
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logP´Â ¹º°¡¿ä? ¾îµð´Â Kow¶û °°ÀÌ ³ª¿À°í ¾îµð´Â µû·Î ³ª¿À°í..
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Stefano    08-06-05 23:47
(1) ¾î´À ¹°ÁúA¸¦  °°Àº ¾ç(ÁÖ·Î °°Àº ºÎÇÇ È¤Àº ¹«°Ô)ÀÇ ¿Áź¿Ã°ú ¹°À» ¼¯¾î ¼¼ ¼ººÐÀ» ÇÔ²² Àß È¥ÇÕÇؼ­ Á¤Ä¡½ÃŲ ´ÙÀ½ ¿Áź¿Ã¿¡ ³ì¾Æµé¾î ÀÖ´Â AÀÇ ³óµµ¸¦  ¹°¿¡ (ÀÌ¿ÂÈ­µÇÁö ¾ÊÀº »óÅ·Î)³õ¾Æµé¾î ÀÖ´Â AÀÇ ³óµµ·Î ³ª´« °ªÀÌ KowÀÌ°í ÀÌ °ªÀÇ Log °ªÀ» ÃëÇÑ °ªÀÌ Log P°¡ µË´Ï´Ù.    Kow =  (Solubility of A in Octanol)/(Solubility of A in Water)
Log p = Log (Kow)

(2) ÀÌ °ªÀÌ Å©´Ù´Â Àǹ̴ ¹°º¸´Ù Oil ¼ººÐ¿¡ ´õ Àß³ì´Â´Ù´Â ÀǹÌÀÌ°í ÀÌ °ªÀÌ ÀÛ´Ù¸é ¹°¿¡ ´õ Àß ³ì´Â´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ½À´Ï´Ù. 

(3) ºñ½ÁÇÑ ¿ë¾î·Î Distribution Constant°¡ Àִµ¥ ÀÌ°ÍÀº ¹°¿¡ ÀÌ¿ÂÈ­µÇ¸é¼­ ³ì¾Æµé¾î ÀÖ´Â ¾çÀ» Æ÷ÇÔÇÕ´Ï´Ù.

(4) ¾Æ·¡ÀÇ Âü°íÀڷḦ °ËÅäÇØ ºñ±³ÇØ º¸¼¼¿ä

http://www.bionity.com/lexikon/e/Partition_coefficient
http://www.bionity.com/lexikon/e/Distribution_constant
   

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