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In organic chemistry, the chloroacetic acids (systematic name chloroethanoic acids) are three related chlorocarbon carboxylic acids: * Chloroacetic acid (chloroethanoic acid), CH2ClCOOH * Dichloroacetic acid (dichloroethanoic acid), CHCl2COOH * Trichloroacetic acid (trichloroethanoic acid), CCl3COOH As the number of chlorine atoms increases, the electronegativity of that end of the molecule increases, and the molecule adopts a progressively more ionic character: its density, boiling point and acidity all increase. == Production == * Chloroacetic acid is mainly made by hydrolysing trichloroethylene in the presence of sulfuric acid: : CCl2= CHCl + 2 H2O → CH2ClCOOH + 2 HCl * Dichloroacetic acid is manufactured in small quantities by reducing trichloroacetic acid. * Trichloroacetic acid is made by directly reacting chlorine with acetic acid using a suitable catalyst. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「chloroacetic acids」の詳細全文を読む スポンサード リンク
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