poronovideos人初重口_黑人粗大a片在线观看_美女末成年视频黄是免费网址_另类maturetube富婆

市場價:元價格:元

  • 中文名稱:環(huán)己基甲基二甲氧基硅烷
  • CAS RN:17865-32-6
  • EINECS號:
  • 分 子 式:C9H20O2Si
  • 分 子 量:188.34
  • 分子式:

?無色透明液體

氣味溫和

沸點196℃

用途:本品是丙烯聚合高效載體型催化劑的添加劑,俗稱C-DONOR,在其催化劑體系中,是一種很好的外給電子體,對提高催化劑活性;立體定向性及延長活性壽命均起重要作用。
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