joldas
Harmless
Posts: 3
Registered: 22-1-2014
Location: Kazakhstan-Paris
Member Is Offline
Mood: No Mood
|
|
need help pridinum salt synthesis
I am going to synthesis pyridinum salts from pure pyridine + ethanol and mix it with R-Br...
so I need to reflux them... I want to know how to use reflux here. I need the photo.. thank you very much.
|
|
|
Nicodem
|
Thread Moved
22-1-2014 at 06:30 |
joldas
Harmless
Posts: 3
Registered: 22-1-2014
Location: Kazakhstan-Paris
Member Is Offline
Mood: No Mood
|
|
I have to use reduced pressure then what to do?
|
|
|
bfesser
Resident Wikipedian
Posts: 2114
Registered: 29-1-2008
Member Is Offline
Mood: No Mood
|
|
There is no such thing as "pridinum" or "pyridinum." The word you're looking for is <em><a href="http://en.wikipedia.org/wiki/Pyridinium"
target="_blank">pyridinium</a></em> <img src="../scipics/_ext.png" />.
<a href="http://en.wikipedia.org/wiki/Reflux" target="_blank">Reflux</a> <img src="../scipics/_wiki.png" />
Next time, please put a little effort into your post—you haven't made a positive first impression.
|
|
|
DraconicAcid
International Hazard
Posts: 4334
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Online
Mood: Semi-victorious.
|
|
Your reactants are in the flask, the condenser is in the neck of the flask, water flows through the condenser to keep it cool. Heat the flask (the
diagram shows a water bath, but the heat source will depend on the boiling point of the reactants/solvents. For an ethanol solution, a hot water bath
will be fine). Boil the reaction mixture- the fumes will condense in the condenser and flow back into the flask (re-flux = "flow back"), so that you
can keep boiling it (constant, high temperature) with minimal loss of solution.
Be VERY careful with pyridine. It's toxic, can cause sterility, and reeks like rotting fish.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
|
|
|
joldas
Harmless
Posts: 3
Registered: 22-1-2014
Location: Kazakhstan-Paris
Member Is Offline
Mood: No Mood
|
|
sorry , thank you very much.
and now anyone could give me a detailed document which synthesis the ethyl ammonium nitrate. thanks
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
