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Buchi Rotavapor R for sale (from Europe) with pump, vac controller, stand etc.!
I do use a recirculating chiller, it goes down to 0 C. However, the 20 C coolant rule is Buchi's not ... |
20-8-2008 at 11:07
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
Here's a 1960 JOC paper from one of the US Naval labs on hydrolysis of trichloromethylarenes catalyz ... |
20-8-2008 at 10:48
by: Sauron |
Buchi Rotavapor R for sale (from Europe) with pump, vac controller, stand etc.!
Ah but as far as I know, Sasha does not manufacture herbal liqueurs. Which is why I had all those Bu ... |
20-8-2008 at 04:23
by: Sauron |
Reaction of Benzotrichloride etc w/Metal Oxides
Here is a facile prep of vanadium tetrachloride (VCl4), vanadium oxychloride (VOCl3) and titanium te ... |
20-8-2008 at 04:07
by: Sauron |
What are these glassware pieces good for?
An initial guess would be parts of some sort of liquid/liquid extraction system.
Hard to say beca ... |
19-8-2008 at 23:59
by: Sauron |
a-halogenation of carboxylic acids...
The purpose of the red P or other "halogen carrier" catalyst in the HVZ reaction is to convert some ... |
19-8-2008 at 23:55
by: Sauron |
Aqueous Preparation of Toluene Sulfonyl Halides
Arylsulfonyl chlorides are best made by chlorosulfonic acid.
And if you can't buy chlorosulfonic ... |
19-8-2008 at 18:46
by: Sauron |
Buchi Rotavapor R for sale (from Europe) with pump, vac controller, stand etc.!
The bath in the photo is a Buchi, integrated into the Buchi stand, I know because I have one of the ... |
19-8-2008 at 18:31
by: Sauron |
Buchi Rotavapor R for sale (from Europe) with pump, vac controller, stand etc.!
Normally the baths Buchi sold are just water baths and so top out at 100 C or so. In fact they are d ... |
19-8-2008 at 11:08
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
You know from experience that getting the third Cl onto benzaldichloride is slow. With m-xylene, exa ... |
19-8-2008 at 10:22
by: Sauron |
a-halogenation of carboxylic acids...
TCCA works, NCS works, the halohydantoins work, preferably on the preformed acyl halide. |
19-8-2008 at 04:00
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
I apologize for double post. For those who unlike myself derive more pleasure from patents than from ... |
19-8-2008 at 02:03
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
Trichloroacetyl chloride is not very stable, it likes to fall apart to CCl4 and Cl2 and CO, the elem ... |
18-8-2008 at 13:32
by: Sauron |
1,3 Acetonedicarboxylic Acid
Trading off the hazard and expense of oleum for low yield is a good idea for a novice. There remains ... |
18-8-2008 at 12:42
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
In looking over these US patents the two standouts, from point of view of milder conditions and ease ... |
18-8-2008 at 12:34
by: Sauron |
Home chemist raided in MA, lab seized.
I think if Ramiel wanted to name names he would have done, so baiting him to do so is just a waste o ... |
18-8-2008 at 04:32
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
I will have to unearth the US patent I am talking about as it is one of the ones not included in SCW ... |
18-8-2008 at 02:01
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
As I recall one of the main US patents on SOCl2 from 65% oleum and SCl2 and/or S2Cl2, the reaction t ... |
18-8-2008 at 00:34
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
Len1, I agree that 24 hrs is a long rxn time, but 60% is not such a bad yield. Benzotrichloride is a ... |
17-8-2008 at 19:09
by: Sauron |
Home chemist raided in MA, lab seized.
Once a law is passed the intent of the people who drafted the legislation is out the window. It's th ... |
17-8-2008 at 12:06
by: Sauron |
Home chemist raided in MA, lab seized.
Any comment I would make on this asinine and reactionary legislation, which is a complete violation ... |
17-8-2008 at 11:30
by: Sauron |
SO2Cl2 -> SOCl2 - Some Musings
Thionyl chloride (SOCl2) is a desirable but for many, unavailable reagent that is rather difficult t ... |
17-8-2008 at 10:26
by: Sauron |
Taming Phosgene
And another paper on this matter, this one primarily on the TEA-phosgene 2:1 saltsystem but also dis ... |
16-8-2008 at 11:12
by: Sauron |
1,3 Acetonedicarboxylic Acid
Procedures with DHA and glyceraldehyde look fine on paper but are usually a nightmare in reality.
... |
16-8-2008 at 09:42
by: Sauron |
Trapping NH3
Thanks.
The whole thing is a pretty simple setup. An air condenser is used for reflux as the exce ... |
16-8-2008 at 09:25
by: Sauron |
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