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77<br />

ตารางผนวกที่ ง1 คาความเปนขั้ว (Polarity index) ของตัวทําละลายอินทรียชนิดตางๆ<br />

Name Structure bp, o C<br />

Polarity index<br />

(Syder)<br />

i-propyl ether CH 3 CH 2 CH 2 O CH 2 CH 2 CH 3 68.3 2.2<br />

chloroform CHCl 3 61.2 3.4-4.4<br />

ethyl alcohol CH 3 CH 2 -OH 78 5.2<br />

acetone 56 5.4<br />

methyl alcohol CH 3 -OH 68 6.6<br />

water H-O-H 100 9

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