Common name for sodium cellulose xanthate (C 6 H 9 O 4 ・OCS 2 Na) n ( n is approximately 300). It is obtained by reacting alkali cellulose with carbon disulfide. The free acid state is unstable and does not exist, and it is mostly in the form of a sodium salt. When this is dissolved in dilute sodium hydroxide, a viscous liquid is called viscose, and when viscose is extruded into a sulfuric acid bath and spun, it becomes regenerated cellulose, or rayon. Wood pulp is used as the source of cellulose. [Uriu Toshiyuki] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
セルロースキサントゲン酸ナトリウム(C6H9O4・OCS2Na)n(nは約300)の通称。アルカリセルロースに二硫化炭素を作用させると得られる。遊離の酸の状態は不安定で存在せず,多くナトリウム塩となっている。これを希薄水酸化ナトリウムに溶かした粘稠な液体がビスコースであり,ビスコースを硫酸浴へ押し出して紡糸すると再生セルロースすなわちレーヨンになる。セルロース源は木材パルプが使われる。【瓜生 敏之】
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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