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    [热点] 投稿返修后收到这样的回复,还有希望吗 Araveing 2025-12-22 刚刚
    求助:高氯酸和碳酸钾 (4/500) gastrodia 2009-03-18 2009-03-19 12:47:57 by gastrodia
    [无机化学] 求解无机题 (1/113) qiaozhi8702 2009-03-19 2009-03-19 11:18:03 by jessiemajie
    [实验技术] 急求四水氯化锰脱水办法!送金币10! (4/690) kevin8216 2009-03-11 2009-03-19 11:16:38 by kevin8216
    [无机化学] 人造石墨和天然石墨的区别 (3/558) yushixi 2009-03-14 2009-03-18 23:33:02 by yushixi
    [无机化学] [求助]如何对膜材料表面的金属进行分析 (1/102) zigutou 2009-03-18 2009-03-18 18:00:45 by kmd2005
    《自然》:氧气出现时间或提前10亿年 (评阅+1) (1/88) jinmei7020 2009-03-18 2009-03-18 10:32:47 by liangniao
    [无机化学] 无水氯化钙吸水后能否再生重复利用 (5/2071) ch4_hcho 2008-12-30 2009-03-18 07:46:45 by xyan01
    [无机化学] 奖励金币回答无水氯化镁的问题 (5/388) xyan01 2009-03-10 2009-03-17 18:13:52 by rp_cao
    [实验技术] [求助]请高手帮帮忙,溶液浓度中M,N 分别代表什么,怎么配的问题! (6/865) xiaohui8882 2009-03-16 2009-03-17 10:32:56 by xzliucheng
    [无机化学] 求助:氨水的分子量到底用哪一个? (1/981) renny8160 2009-03-13 2009-03-17 06:59:04 by kmd2005
    [综合其它] 求分析测定方法 (5/202) scarletwine 2009-03-15 2009-03-16 18:09:31 by scarletwine
    [物理化学] 求助,谁有傅献彩物化的第四版 12 (4/447) labixiaobai 2008-06-10 2009-03-16 13:13:34 by jiean9265
    [物理化学] Thermodynamics and Statistical Mechanics (评阅+3) (8/645) lihai0910 2008-12-25 2009-03-16 10:59:52 by jiean9265
    [实验技术] 一些常用有机溶剂的干燥处理 (0/242) yong303 2009-03-14 2009-03-14 17:01:20 by yong303
    [物理化学] 量化计算的课件 (4/378) hsying 2009-03-13 2009-03-14 16:34:31 by hsying
    [实验技术] 求助:pH电极的氯化钾溶液 (3/478) bignoodle 2009-03-13 2009-03-13 22:36:00 by ahnu126
    [物理化学] 请教热力学吉布斯自由能计算问题 (2/225) haoyz8006 2009-03-12 2009-03-13 21:49:39 by lc88ms
    [无机化学] 在哪里能查到离子半径的数据 (4/426) xsfh 2009-03-02 2009-03-13 20:58:54 by xxzhang010
    [无机化学] 谁知道焦亚硫酸钠与亚硫酸铵反应生成什么? (4/571) 3pengbo 2009-03-12 2009-03-13 16:25:23 by 3pengbo
    [无机化学] 钼酸铵 (2/241) 冰山上 2009-03-10 2009-03-13 14:19:55 by zuodan163
    [无机化学] 九水合硝酸铬潮解了怎么办? (1/652) 80502060 2009-03-12 2009-03-13 13:25:22 by zuodan163
    [无机化学] 三氧化二铁活性问题 (2/134) eaglezcp 2009-03-11 2009-03-13 13:15:33 by zuodan163
    [实验技术] 实验室制造低温的方法 (评阅+1) (5/833) qingyang3728 2008-06-19 2009-03-13 07:20:16 by 147yunxiao
    [实验技术] 求助!干燥THF除了用氢化钙,还有其它的方法吗 (2/151) wangxiaoliang69 2009-03-11 2009-03-12 17:35:47 by wangxiaoliang69
    [实验技术] 求助 重铬酸洗液的配制 (9/1337) river2310 2008-12-23 2009-03-12 16:20:36 by yangjiacaizi
    【zz】Prof. Catherine Murphy to Join Faculty at Illinois in August 2009 (0/119) weihui_cn 2009-03-12 2009-03-12 02:20:34 by weihui_cn
    1990-2008诺贝尔奖得主 (评阅+1) (3/501) wangsj1984 2009-03-10 2009-03-11 15:18:58 by wangsj1984
    [版内事务] 【巨奖等你来!】化学区帖子大整理活动    ( 1 2 3 4 5 6 .. 11 ) (评阅+50) (102/8178) dnp 2008-11-15 2009-03-11 08:34:17 by wenshengping853
    [实验技术] 请问哪可以买到少量高纯化学试剂,谢谢! (3/452) yidu56 2009-01-07 2009-03-10 21:44:55 by lqhhuihua
    [无机化学] 氢氧化锌开始析出时的PH值 (3/528) shixiaolan 2009-03-09 2009-03-10 20:20:58 by shinexq
    [无机化学] 硝酸废水产生环节及主要污染物 (评阅+1) (0/78) championship 2009-03-10 2009-03-10 17:51:15 by championship
    最全数据库 (+2) (评阅-2) (3/434) lvyazhou20 2009-03-10 2009-03-10 16:55:10 by hustsunboy
    Chemistry World 评出的2008年发表的化学领域的29篇重要学术论文 (5/297) zxzj05 2009-03-09 2009-03-09 17:32:39 by zxzj05
    气相反应 (2/126) waiwaide 2009-03-07 2009-03-08 23:52:53 by dobdob
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    [无机化学] 求助化学题 (1/115) ahong504 2008-12-15 2009-03-07 21:55:09 by xtulsf
    [无机化学] 求助。酸碱滴定用什么隐蔽铟? (1/103) saqxl 2008-12-22 2009-03-07 21:40:16 by xtulsf
    [物理化学] 苯蒸汽浓度计算 (5/313) 周小会 2009-03-04 2009-03-07 10:19:28 by 醉乡常客
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    [物理化学] 体系稳定性与自由能的关系 (2/199) weidong9631 2009-02-26 2009-03-04 19:25:08 by haishenhang
    [无机化学] CuInS2的化学性质 (1/167) cedar3031 2009-03-04 2009-03-04 16:49:48 by cedar3031
    实验室用的40%的HF,这个浓度具体指什么浓度啊? (4/690) polaris953 2009-03-03 2009-03-04 08:49:05 by polaris953
    [实验技术] 【请教】配置碱缸出了问题 (2/341) zly-apchy 2009-03-03 2009-03-04 08:26:31 by zly-apchy
    [综合其它] 聚丙二醇的物化性质,急需······· (2/246) xiaocheng5660 2009-03-02 2009-03-03 21:08:18 by 张杰1809
    [无机化学] Properties of complex inorganic solids (评阅+3) (金币≥5)(5/255) catju 2008-04-06 2009-03-03 15:27:06 by silica83
    [实验技术] 异氰酸酯的安全使用注意事项 (评阅+3) (0/439) yexuqing 2009-03-03 2009-03-03 13:54:47 by yexuqing
    【转帖】中科院一实验室发生火灾 10余保安氯气中毒 (评阅+1) (3/522) bush286 2009-02-28 2009-03-03 12:33:37 by yexuqing
    [经验交流] 关于mL,发表论文必看!    ( 1 2 3 ) (评阅+1) (20/1648) ufo1977 2008-11-25 2009-02-28 21:53:05 by huang_05
    [无机化学] 请教 如何去除Si片上的硅酸钠 (3/448) citylack 2008-10-31 2009-02-28 09:49:48 by titanium9656
    [实验技术] 化验员基础知识    ( 1 2 ) (评阅+1) (10/1024) SuperQDI 2008-03-14 2009-02-27 17:46:14 by ffan023
    [无机化学] 铁转化的一些小问题 (3/314) weishunxin 2009-02-24 2009-02-26 20:25:16 by huanweiwei
    [物理化学] [求助]请问有哪些溶剂与乙醇不互溶? (3/432) seaboyfang358 2009-01-04 2009-02-26 11:36:10 by right304
    陈竺入选《Science》09年8位值得关注科学人物0 (2/302) 武大 2009-01-06 2009-02-26 11:28:49 by right304
    能用化学方法解决的新问题——身边的应用 (1/140) yulingaode 2009-01-07 2009-02-26 11:27:18 by right304
    2008年国家最高科学技术奖 徐光宪 (评阅+1) (4/439) weihui_cn 2009-01-09 2009-02-26 11:13:30 by right304
    [综合其它] 易挥发是否意味着低沸点? (7/608) 红月亮6752 2009-01-14 2009-02-26 11:00:37 by right304
    [无机化学] 【请教】请问无水溴化氢和无水氯化氢怎么制备? (1/146) fletchercr 2009-02-25 2009-02-26 10:06:49 by xugangpu
    [实验技术] 四氢呋喃中,铁还原氯化铁的问题 (2/230) ranger198271 2008-10-28 2009-02-26 09:21:10 by qhen
    [经验交流] 求助:关于利福平 (4/445) 咖啡3775 2009-02-11 2009-02-26 08:35:43 by hearsay800
    [物理化学] 活度问题请教    ( 1 2 ) (13/863) zjpxw 2009-02-19 2009-02-25 07:51:06 by dobdob
    [无机化学] 请问溶剂的挥发性与什么有关系? (3/373) tingting888 2009-02-23 2009-02-24 23:03:28 by hexingyi
    [实验技术] 请教:氮气保护操作    ( 1 2 ) (15/1040) dreamshop 2008-04-29 2009-02-24 14:22:17 by greenbest
    [经验交流] 喷涂材料表面处理工艺 (3/313) 长在澄江的芦荟 2009-02-11 2009-02-23 15:41:34 by rp_cao
    [综合其它] 求助~~~~四氢呋喃与水的分离!!!!谢谢 (2/225) shichunyancs 2009-02-19 2009-02-19 20:25:43 by benben660
    [物理化学] 孙德坤沈文霞姚天扬编著物理化学解题指导    ( 1 2 3 ) (评阅+1) (21/1945) magnolia24 2008-03-05 2009-02-19 19:17:41 by 良哥
    [实验技术] 给大家分享本人收藏的几个查MSDS的网站    ( 1 2 ) (评阅+1) (10/886) zuoyinglin 2008-04-20 2009-02-19 10:09:35 by joker0115
    [物理化学] 氢键随温度变化的情况? (5/2017) chitosan666868 2008-12-29 2009-02-18 17:15:22 by dobdob
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    [无机化学] 原子百分比和摩尔百分比如何换算? (1/1066) 80502060 2008-12-11 2009-02-18 15:34:18 by 拥抱曙光
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