| Search |
| [Next Page] |
Preparation of Alkyltriphenylphosphonium Bromides
Thank you very much Klute! Indeed I am only interested in the first step of preparing the alkylated ... |
30-9-2008 at 00:32
by: panziandi |
Preparation of Alkyltriphenylphosphonium Bromides
Today I thought I would attempt to prepare butyltriphenylphosphonium bromide.
Method (I came up w ... |
29-9-2008 at 10:27
by: panziandi |
"dry" acetone
That is a completely pointless post. Not everyone is a meth cook and this is not the home of meth co ... |
28-9-2008 at 12:40
by: panziandi |
Near Disaster with Alchohol Lamp!!!
Blimey that could easily have been very much worse! Good warning! |
27-9-2008 at 10:18
by: panziandi |
Difluoroacetic acid
Indeed MFA is incredibly toxic and by no means limited to rat poison! Its the ingredient in the infa ... |
27-9-2008 at 08:28
by: panziandi |
Chemical Inventory / MSDS Datastore / etc.
Indeed very good point DJF90. I sometimes stumble upon that. Also if it told you where you stored it ... |
25-9-2008 at 11:21
by: panziandi |
Alchohol in alchohol burner?
Methanol burns nicely in a spirit burner, methylated spirit is a little messier, denatured ethanol i ... |
25-9-2008 at 10:47
by: panziandi |
Chemical Inventory / MSDS Datastore / etc.
Very good idea, I like the idea of keeping an inventory ( i keep a list of everything I have) but it ... |
25-9-2008 at 09:25
by: panziandi |
sulfonylchloride to thiol
LiAlH4 is not able to reduce the benzene ring! I can't picture any other reactions occuring tbh. |
24-9-2008 at 04:00
by: panziandi |
benzophenone synthesis
Yes I was thinking about the likelihood of side reactions especially as these Friedle-Crafts reactio ... |
23-9-2008 at 07:55
by: panziandi |
Bromobenzene from Bromoaniline
I have just found an interesting paper:
Sasaki, M. et al. Bull. Chem. Soc. Jpn., 65, 1739-1740, 1 ... |
22-9-2008 at 13:17
by: panziandi |
PTFE or Glass Stopcocked titration burette?
I have seen cheap acrylic burettes with ptfe stopcocks. This is a viable option for colleges etc, pe ... |
22-9-2008 at 02:42
by: panziandi |
The short questions thread (1)
KMnO4 often contains some MnO2 as a contaminant even in lab grade samples also you can buy KMnO4 as ... |
22-9-2008 at 02:36
by: panziandi |
benzophenone synthesis
I think he is trying to make 2-amino-5-chlorobenzophenone following a procedure for 2-amino-5-nitrob ... |
22-9-2008 at 02:16
by: panziandi |
The short questions thread (1)
Aluminium isopropoxide in isopropanol is an excellent way of reducing ketones to alcohols.
In fac ... |
21-9-2008 at 05:05
by: panziandi |
PTFE or Glass Stopcocked titration burette?
I'm sure the Class rating is to do with the accuracy. Not sure but A tends to say +/- so many mL @ a ... |
20-9-2008 at 13:49
by: panziandi |
PTFE or Glass Stopcocked titration burette?
Take your PTFE stopcock out of the socket for storing or loosen it as an overtightened PTFE stopcock ... |
19-9-2008 at 12:14
by: panziandi |
The short questions thread (1)
It will form the hydroxide. Aluminium hydroxide decomposes to aluminium oxide at 300*C according to ... |
19-9-2008 at 09:08
by: panziandi |
Common accidents in the lab and how to avoid them
Good job its a joke!
The human nose is VERY sensitive to the odour of the halogens, indeed bromin ... |
18-9-2008 at 15:29
by: panziandi |
Common accidents in the lab and how to avoid them
HaHa I had a similar problem with the bloody CuO/Mg thermite!
"and at number 8, yes its not banne ... |
18-9-2008 at 12:37
by: panziandi |
Synthesis of gamma-nonalactone (Coconut aroma)
Tempting! I have some hexanal kicking about I think but not sure about the malonic acid. Maybe if I ... |
18-9-2008 at 12:08
by: panziandi |
Synthesis of gamma-nonalactone (Coconut aroma)
Hexan-1-ol and Octano-1-ol are more widely available than the heptan-1-ol in my experience atleast. ... |
18-9-2008 at 11:33
by: panziandi |
VERY OLD t-Butyldiphenylchlorosilane
Well looking through the bottle it is rather cloudy possibly with a precipitate lingering towards th ... |
17-9-2008 at 07:53
by: panziandi |
Gents: please help me with a piece of paleochemistry
Or you can get iron oxide (rust) as a pigment in ceramic stores and online etc. You can get ferrous ... |
17-9-2008 at 06:18
by: panziandi |
VERY OLD t-Butyldiphenylchlorosilane
I have about 750mL of VERY OLD t-butyldiphenylchlorosilane. The contents of the bottle are quite vis ... |
17-9-2008 at 04:36
by: panziandi |
| [Next Page] |
