metaldehyde
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...It polymerizes exothermically with a small amount of acid (such as sulfuric acid) to produce the trimer paraldehyde (C 2 H 4 O) 3 (an aromatic liquid with a melting point of 12.45°C and a boiling point of 128.0°C). When kept below 0°C and treated with acid in the same way, it becomes metaldehyde (C 2 H 4 O) n ( n = 4 to 6). When heated with a small amount of sulfuric acid, these easily decompose into the original acetaldehyde. ... *Some of the terminology explanations that mention "metaldehyde" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
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…微量の酸(たとえば硫酸)によって発熱的に重合し，三量体のパラアルデヒドparaldehyde(C2H4O)3(融点12.45℃，沸点128.0℃の芳香のある液体)となる。また0℃以下に保ち，同じように酸で処理するとメタアルデヒドmetaldehyde(C2H4O)n(n＝4～6)となる。これらは少量の硫酸と加熱すると，容易にもとのアセトアルデヒドに分解する。… ※「metaldehyde」について言及している用語解説の一部を掲載しています。 出典｜株式会社平凡社世界大百科事典 第２版について | 情報 |
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