| 新 | 标 题 | 悬赏分 | 发贴人 | 回复/阅读 | 回复人 | 更新时间 |
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二甲酯与二元醇反应催化剂应选催化剂？ | 3 | TENGFEI168 | 2/757 | tengfei168 | 2007-10-30 12:55:27 |
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求,二手气相色谱仪 | tengfei168 | 2/720 | qiaojiant | 2007-09-22 15:45:40 | |
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紫外线吸收剂与抗紫外线剂的区别 | 3 | tengfei168 | 2/701 | tengfei168 | 2007-09-12 15:48:04 |
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谁能告诉我含有苯并三唑的紫外线吸收剂及抗氧剂都有哪些？ | 3 | tengfei168 | 2/754 | tengfei168 | 2007-09-12 15:46:00 |
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急寻有效阻聚剂 | 3 | tengfei168 | 3/623 | tengfei168 | 2007-09-12 15:44:51 |
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急寻阻聚剂 | 3 | tengfei168 | 5/701 | tengfei168 | 2007-09-12 15:43:41 |
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请问:有带双键单分子相溶剂吗? | 3 | tengfei168 | 2/478 | tengfei168 | 2007-06-06 16:44:06 |
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寻找一种抗氧剂应用在烯醇聚合物中 | 3 | tengfei168 | 2/625 | tengfei168 | 2007-04-28 13:59:25 |
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如何消除渗入水泥地的烯丙醇. | 3 | tengfei168 | 4/641 | tengfei168 | 2007-03-03 10:13:46 |
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二手填料塔 | tengfei168 | 4/504 | tengfei168 | 2006-12-19 09:35:39 | |
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招化工企业办厂创业 | tengfei168 | 6/739 | 化工小生 | 2006-11-25 21:30:43 | |
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在甲醇中如何除掉含有微量烯醇 | 3 | tengfei168 | 3/586 | tengfei168 | 2006-11-07 15:23:58 |
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难题求解:有机物末端是伯胺如何使它只能上一个环氧乙烷. | 3 | tengfei168 | 4/685 | tengfei168 | 2006-11-07 15:22:57 |
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小型二手精馏塔 | tengfei168 | 7/991 | tengfei168 | 2006-11-06 09:42:53 | |
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在烯烃类有机反应,防止双键打开所用阻聚剂? | 3 | tengfei168 | 7/1481 | tengfei168 | 2006-11-02 15:06:29 |
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难题求解:有机物末端是伯胺如何使它只能上一个环氧乙烷. | tengfei168 | 0/377 | 2006-10-27 07:56:51 | ||
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酯化反应有咪唑类的催化剂吗？ | tengfei168 | 2/1173 | newdrug | 2006-10-24 15:06:42 | |
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四氢苯酐市场状况及技术难度 | 3 | tengfei168 | 4/1501 | tengfei168 | 2006-10-24 08:14:31 |
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无水四氯化锡与含有五个结晶水的四氯化锡都是固体粉沫吗? | 3 | tengfei168 | 4/1628 | tengfei168 | 2006-10-24 07:55:46 |
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四氢苯酐市场状况及技术难度 | tengfei168 | 0/491 | 2006-10-22 10:34:29 | ||