[superg]

hello,
i've got some CDCl3 with a little piece of silver foil in. what this silver foil is for?removing acidity?stabilization?
thanks

[macman104]

hello,
i've got some CDCl3 with a little piece of silver foil in. what this silver foil is for?removing acidity?stabilization?
thanks

Was it sealed when you opened it?  I've never opened a fresh bottle of CDCl3 to find anything but the liquid in it, nor have we ever added anything to our bottles.

[sjb]

hello,
i've got some CDCl3 with a little piece of silver foil in. what this silver foil is for?removing acidity?stabilization?
thanks

Was it sealed when you opened it?  I've never opened a fresh bottle of CDCl3 to find anything but the liquid in it, nor have we ever added anything to our bottles.

Not even a pinch of K₂CO₃ to act as a dessicant - or are you doing so much chemistry that the chloroform doesn't get a chance to get wet?

[Arkcon]

hello,
i've got some CDCl3 with a little piece of silver foil in. what this silver foil is for?removing acidity?stabilization?
thanks

Could the foil liner of the cap have fallen into the bottle?

[macman104]

Not even a pinch of K₂CO₃ to act as a dessicant - or are you doing so much chemistry that the chloroform doesn't get a chance to get wet?

Nope.  We just have small bottles of CDCl3, we keep 'em in the fridge, and we use 'em when we need 'em.  But we do quite a NMR here...

[superg]

hello,
the bottle was bought with the silver foil in, it's write on the bottle "CDCl3 with silver foil" on.one guy on a french chemistry forum say to me that it's forum limiting the water in the chloroform, but how silver can do that? i think it's much more for decreasing the acidity of the CDCl3...
bye