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storing highly concentrated sodiumhydroxide
[rquote=244276&tid=19616&author=DerAlte]@benzeentje
DATA SOURCE FOR NaOH SOLUTIONS, ETC
... |
7-4-2012 at 02:29
by: benzeentje |
storing highly concentrated sodiumhydroxide
Hi all,
I bought Vogel's textbook of quantitative chemical analysis the other day, and it says that ... |
6-4-2012 at 10:04
by: benzeentje |
Multi-Dosimat 645
Hi all,
I recently bought a multi-dosimat 645, and no manual was included. I tried googling it an ... |
29-3-2012 at 02:20
by: benzeentje |
Extraction of caffeine with diethyl ether
I understand that you may feel safe to work with these chemicals, but I assure you that in my countr ... |
25-3-2012 at 11:56
by: benzeentje |
Extraction of caffeine with diethyl ether
First of all, thanks for all the responses. I was aware from the beginning that there are MUCH bette ... |
25-3-2012 at 11:22
by: benzeentje |
Extraction of caffeine with diethyl ether
Well, i tried my extraction today and met complete failure. My coffee and ether form a very viscous ... |
24-3-2012 at 14:46
by: benzeentje |
Extraction of caffeine with diethyl ether
I have no idea what the Kd is for ether/coffee, but i was told i could use ether as a (worser) subst ... |
23-3-2012 at 05:17
by: benzeentje |
Extraction of caffeine with diethyl ether
[rquote=242185&tid=19439&author=Dr.Bob]You might get some coffee from water by concentrating ... |
21-3-2012 at 10:15
by: benzeentje |
Extraction of caffeine with diethyl ether
[rquote=242182&tid=19439&author=Bot0nist]Try to add base to the aquas extract before extract ... |
21-3-2012 at 08:51
by: benzeentje |
Extraction of caffeine with diethyl ether
[font=Arial]Hi all,
I'm going to try a basic caffeine extraction from coffee. I'm going to take 100 ... |
21-3-2012 at 07:47
by: benzeentje |
PTFE stirring bar dissolved?
okay, i'm feeling quite dull now. I have repeated the same boiling on the same plate with the same b ... |
21-3-2012 at 06:09
by: benzeentje |
The short questions thread (3)
[rquote=242100&tid=14239&author=Adas][rquote=242097&tid=14239&author=benzeentje]Hi a ... |
20-3-2012 at 10:58
by: benzeentje |
The short questions thread (3)
Hi all, i'm trying to extract caffeine without chloroform or other halogen-alkanes. I have thinner ( ... |
20-3-2012 at 10:45
by: benzeentje |
PTFE stirring bar dissolved?
[rquote=242047&tid=19417&author=kclo4]Could it perhaps be cavitation causing the destruction ... |
20-3-2012 at 10:29
by: benzeentje |
PTFE stirring bar dissolved?
okay, thanks for the quick replies. I am 100% sure the powder was not any Calcium salt or such a thi ... |
20-3-2012 at 10:27
by: benzeentje |
PTFE stirring bar dissolved?
The funny/interesting thing is that i used this particular bar in concentrated HCl, H2SO4 (98%) but ... |
19-3-2012 at 14:08
by: benzeentje |
PTFE stirring bar dissolved?
[font=Arial]Hi all,
I'm new to this forum, altough i have a very technical schooling of chemistry. ... |
19-3-2012 at 11:41
by: benzeentje |
