【题目】工业原料BTC是双(三氯甲基)碳酸酯的简称,化学式为C_3Cl_6O_3 ,白色晶体,不溶于水,俗称固体光气。工业上可以利用碳酸二甲酯的氯代反应制备。BTC可以替代光气和醇、醛、胺、酚等多种化合物反应合成化工产品。写出BTC的结构简式。和光气相比BTC具有如下优点(填字母)。A.易保存B.易操作C.安全性高以...
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B0-14 pH, 0...140oC, 0,8...14 bar (abs) 参比系统 TC3 陶瓷膜片,离子捕捉阱 3 M KCl, Ag/AgCl 测量杆长度: 2120mm CPS71E-AA7BTC2 替代CPS71D-7TC21 0-14 pH, 0...140oC, 0.8...14 bar (abs) 3陶瓷膜片, 离子捕捉阱
3422VtS7UtCvXYxoXMVp6eZupR252z85oC 0.77930402BTC 区块:503498| 手续费: 203,840 聪|费率:589.132 聪/虚拟字节 382,651 已确认 + 0.0059327BTC d04c115f2a1494c880854afa4b9cc92c36d5c2e99f12176ec0f49e10bb636da5 2018/01/08 18:26:21(7 年 1 个月前) 1BtcH9a94pPtNKWsWS25Svs7gTGLB9ZTLE...
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