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作者 buteo 在 PTT [ Chemistry ] 看板的留言(推文), 共2187則

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[請益]請問化學藥品受潮結塊該如何處理？

[ Chemistry ]8 留言, 推噓總分: +3

作者: applekim0012 - 發表於 2014/01/14 00:30(10年前)

5^F推buteo:e大講的就是可能的解決方法啊01/14 11:51

[實驗] 請問TMSOTf要如何除水?

[ Chemistry ]12 留言, 推噓總分: +7

作者: raymoname - 發表於 2014/01/13 16:52(10年前)

6^F推buteo:我們實驗室最後是儲存在手套箱帶進手套箱前用vacuum01/14 11:48

7^F→buteo:distillation純化如j大講的 TMS-X的反應性都很強01/14 11:48

8^F推buteo:蒸餾就OK 但難的是擺放原PO可以取比要用的量多一點01/14 11:50

9^F→buteo:蒸餾完就用掉01/14 11:50

Re: [學科] 三題NMR解譜

[ Chemistry ]27 留言, 推噓總分: +6

作者: buteo - 發表於 2014/01/13 00:47(10年前)

10^F→buteo:是aldehyde 我查了一些Ar-O-COH的H多落在8.3附近01/13 01:43

11^F→buteo:OH的話 phenol的peak應該不會這麼down field 不過有可能01/13 01:44

12^F→buteo:和旁邊的carbonyl形成氫鍵?01/13 01:45

13^F→buteo:有phenol的話其他aromatic protons應該很難這麼down field01/13 01:53

Re: [問題] 怎麼測量水分子鍵角？

[ Chemistry ]10 留言, 推噓總分: +5

作者: equation02 - 發表於 2014/01/08 20:31(10年前)

8^F推buteo:看晶體品質好壞品質很好又夠大顆的話可以定位01/09 12:18

9^F→buteo:http://tinyurl.com/lns265v 搜尋到的答案是用紅外光譜解的01/09 12:24

[學習] 請問一本和光譜有關的書

[ Chemistry ]7 留言, 推噓總分: +2

作者: nick0708 - 發表於 2013/12/31 11:44(10年前)

1^F→buteo:寫信問老師最準吧12/31 11:48

Clyden 有機化學2012年第二版的課本詳解

[ Chemistry ]3 留言, 推噓總分: 0

作者: tkd3333 - 發表於 2013/12/26 12:22(10年前)

3^F→buteo:以現有板規算灰色地帶因為是問可以購買的管道而非直接徵書12/28 06:45

[生活] 如何把衣服上的圖案熔掉

[ Chemistry ]1 留言, 推噓總分: 0

作者: ohmygod0715 - 發表於 2013/12/25 20:04(10年前)

1^F→buteo:你拿T恤去店家問一樣材質的比較快也安全吧12/25 21:53

[實驗] 0.335M H2SO4 如何配製？

[ Chemistry ]5 留言, 推噓總分: +1

作者: bcsfndkwn - 發表於 2013/12/24 22:21(10年前)

4^F推buteo:如果濃度要求很準確的話先大概配置0.5M的硫酸水溶液12/24 23:56

5^F→buteo:用無水碳酸鈉滴定求得確切濃度後再加水稀釋到0.335M12/24 23:58

[實驗] 鋅粉活化方式

[ Chemistry ]5 留言, 推噓總分: +3

作者: wwjdidol - 發表於 2013/10/23 22:29(10年前)

3^F推buteo:少量1,2-dibromoethane10/23 23:17

[資訊] 2013諾貝爾化學獎頒給計算化學

[ Chemistry ]26 留言, 推噓總分: +12

作者: fauna - 發表於 2013/10/09 19:00(10年前)

3^F推buteo:ChemBark上說Karplas像EJ Corey一樣是拿終身成就獎 XD10/09 20:18

4^F→buteo:Karplus 打錯10/09 20:18

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