24小时热门版块排行榜    

Znn3bq.jpeg
查看: 230  |  回复: 8
当前主题已经存档。

solarcell

银虫 (小有名气)

[交流] Need help for purification of LiClO4 and tetramethyl ammonium perchlorate

Could someone tell me where I can find information on purification of LiClO4 and tetramethyl ammonium perchlorate
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

ulanhot

木虫 (正式写手)


huyuchem(金币+1):thanks
anhydrous lithium perchlorate is prepared by heating the commercially available anhydrous material or its trihydrate at 160 °C for 48 h under high vacuum (P2O5 trap).
2楼2006-06-27 22:17:53
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

solarcell

银虫 (小有名气)

引用回帖:
Originally posted by ulanhot at 2006-6-27 22:17:
anhydrous lithium perchlorate is prepared by heating the commercially available anhydrous material or its trihydrate at 160 °C for 48 h under high vacuum (P2O5 trap).

Your answer comes from Encyclopedian of Reagents. But it is kind of dangeous. Any better suggestion? Thanks
3楼2006-06-27 23:56:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

lw1966hhh

铁杆木虫 (著名写手)

crystd from water or 50% aq MeOH.
Rendered anhydrous by heating the trihydrate at 170-180 OC IN AN AIR OVEN.
RECRYSTD TWICE from acetonitrile and again dried under vacuum.
一往无前
4楼2006-06-30 18:55:32
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

solarcell

银虫 (小有名气)

You mean any of them can work, right?
5楼2006-07-01 09:15:11
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

miniearth

荣誉版主 (著名写手)

你提到的两个化合物目前都是电解质。你如果需要提纯到4个9以上的纯度,那是技术机密,估计很难找到答案。一般可以从生产电解质的公司得到纯度很高的物质。
6楼2006-07-01 19:23:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

solarcell

银虫 (小有名气)

It is my duty for the whole group. I do not need to care about how many 9 I can obtain. All I care about is how I can purify them.
7楼2006-07-03 12:55:10
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

solarcell

银虫 (小有名气)

引用回帖:
Originally posted by miniearth at 2006-7-1 19:23:
你提到的两个化合物目前都是电解质。你如果需要提纯到4个9以上的纯度,那是技术机密,估计很难找到答案。一般可以从生产电解质的公司得到纯度很高的物质。

Thanks
8楼2006-07-03 12:55:27
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

solarcell

银虫 (小有名气)

we purchased them from the company. The problem is that they sit there too long.
9楼2006-07-03 12:57:08
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 solarcell 的主题更新
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 急需调剂 +5 绝不放弃22 2026-04-15 5/250 2026-04-15 23:11 by Tide man
[考研] 22408 312求调剂 +20 门路摸摸 2026-04-14 21/1050 2026-04-15 20:39 by cuisz
[考研] 考研调剂 +13 长弓傲 2026-04-13 14/700 2026-04-14 14:44 by zs92450
[考研] 考研英一数一338分 +9 长江大学东校区 2026-04-13 10/500 2026-04-14 00:41 by 王珺璞
[考研] 求调剂 +12 璃茉一定上岸 2026-04-10 13/650 2026-04-14 00:08 by Equinoxhua
[考研] 材料考研调剂 +29 云木达达 2026-04-11 31/1550 2026-04-13 13:32 by lyh鲁老师
[考研] 346分,工科0854求调剂,专硕 +6 moser233 2026-04-12 7/350 2026-04-12 22:11 by fqwang
[考研] 0831生医工第一轮调剂失败求助 +12 小熊睿睿_s 2026-04-11 16/800 2026-04-12 16:28 by 钰璞
[考研] 339求调剂 +8 hanwudada 2026-04-11 9/450 2026-04-12 15:36 by laoshidan
[考研] 296求调剂 +14 汪!?! 2026-04-10 16/800 2026-04-12 10:48 by zhouyuwinner
[考研] 一志愿西北工业大学289 085602 +33 yang婷 2026-04-10 34/1700 2026-04-12 08:11 by Art1977
[考研] 303求调剂 +14 SereinQ 2026-04-10 15/750 2026-04-11 20:43 by 蓝云思雨
[考研] 求调剂 +6 archer.. 2026-04-09 8/400 2026-04-11 10:55 by zhq0425
[考研] 283求调剂 +22 那个噜子 2026-04-09 22/1100 2026-04-11 10:41 by 逆水乘风
[考研] 0854调剂 +4 长弓傲 2026-04-09 4/200 2026-04-11 09:18 by 猪会飞
[考研] 一志愿北理工298英一数二已上岸,感谢各位老师 +14 Reframe 2026-04-10 16/800 2026-04-10 23:07 by caotw2020
[考研] 调剂 +19 小张ZA 2026-04-10 20/1000 2026-04-10 22:08 by 猪会飞
[考研] 中科院总分315求调剂 +8 lallalh 2026-04-09 8/400 2026-04-10 19:30 by dick_runner
[考研] 314求调剂 +18 xhhdjdjsjks 2026-04-09 19/950 2026-04-10 18:53 by HPUCZ
[考研] 已调剂 +18 柴郡猫_ 2026-04-09 19/950 2026-04-09 22:10 by 柴郡猫_
信息提示
请填处理意见