Solubility of Calcium Fluoride

[Dave]

I want to know if CaF2 is soluble in methanol. I've looked in the
Merck index already and all it says is that CaF2 is practically
insoluble in water. I want to know this because i want to perform
some solution FT-IR experiments with a CaF2 cell with aqueous and
methanolic solutions. Any help would be much appreciated!!

Dave

[Gavin Whittaker]

Dave <***@hotmail.com> writted:
: I want to know if CaF2 is soluble in methanol. I've looked in the
: Merck index already and all it says is that CaF2 is practically
: insoluble in water. I want to know this because i want to perform
: some solution FT-IR experiments with a CaF2 cell with aqueous and
: methanolic solutions. Any help would be much appreciated!!

No, not to any extent that might interest anyone other than the
most hardened and dedicated physical chemist.

ATB, Gavin.

[Josh Halpern]

Post by Gavin Whittaker
: I want to know if CaF2 is soluble in methanol. I've looked in the
: Merck index already and all it says is that CaF2 is practically
: insoluble in water. I want to know this because i want to perform
: some solution FT-IR experiments with a CaF2 cell with aqueous and
: methanolic solutions. Any help would be much appreciated!!
No, not to any extent that might interest anyone other than the
most hardened and dedicated physical chemist.

True, we use methanol for cleaning our MgF2 optics.

josh halpern

[William David Thweatt]

Dave (***@hotmail.com) wrote:
: I want to know if CaF2 is soluble in methanol. I've looked in the
: Merck index already and all it says is that CaF2 is practically
: insoluble in water. I want to know this because i want to perform
: some solution FT-IR experiments with a CaF2 cell with aqueous and
: methanolic solutions. Any help would be much appreciated!!

CaF2 will be okay. You can also use MgF2. It all depends on the IR range
you're after.

--
--
William "Dave" Thweatt
Robert E. Welch Postdoctoral Fellow
Chemistry Department
Rice University
Houston, TX
***@ruf.rice.edu
***@us.army.mil

[Dave]

Post by Gavin Whittaker
: I want to know if CaF2 is soluble in methanol. I've looked in the
: Merck index already and all it says is that CaF2 is practically
: insoluble in water. I want to know this because i want to perform
: some solution FT-IR experiments with a CaF2 cell with aqueous and
: methanolic solutions. Any help would be much appreciated!!
CaF2 will be okay. You can also use MgF2. It all depends on the IR range
you're after.
--

So what is the useful range for this cell? I want to see from 2000 cm-1 to 4000 cm-1

Dave

[William David Thweatt]

Dave (***@hotmail.com) wrote:
: ***@rice.edu (William David Thweatt) wrote in message news:<bqo20e$61b$***@joe.rice.edu>...
: > Dave (***@hotmail.com) wrote:
: > : I want to know if CaF2 is soluble in methanol. I've looked in the
: > : Merck index already and all it says is that CaF2 is practically
: > : insoluble in water. I want to know this because i want to perform
: > : some solution FT-IR experiments with a CaF2 cell with aqueous and
: > : methanolic solutions. Any help would be much appreciated!!
: >
: > CaF2 will be okay. You can also use MgF2. It all depends on the IR range
: > you're after.
: >
: > --


: So what is the useful range for this cell? I want to see from 2000 cm-1 to 4000 cm-1

Either will do for that range. CaF2 will discolor if you hit it with a
powerful UV laser (i.e. ArF or XeF excimer or fourth-harmonic Nd:YAG). It
will do fine for IR between 2000 and 4000 cm-1.

--
--
William "Dave" Thweatt
Robert E. Welch Postdoctoral Fellow
Chemistry Department
Rice University
Houston, TX
***@ruf.rice.edu
***@us.army.mil

[Muhammar]

CaF2 is pretty insoluble in water and organic solvents. Chemical
damage of CaF2 cell can be caused by 1) strong acids 2) concentrated
ammonium salts 3) amonia and other small-molecule amines (like
methylamine)

With technical questions like this one, I found usefull calling the
manufacturer of the device - the tech support people (once you manage
to get through the custommer service ) tend to be nice. It costs you
nothing to ask them.

Post by Dave
I want to know if CaF2 is soluble in methanol. I've looked in the
Merck index already and all it says is that CaF2 is practically
insoluble in water. I want to know this because i want to perform
some solution FT-IR experiments with a CaF2 cell with aqueous and
methanolic solutions. Any help would be much appreciated!!
Dave

[William David Thweatt]

Muhammar (***@hotmail.com) wrote:
: CaF2 is pretty insoluble in water and organic solvents. Chemical
: damage of CaF2 cell can be caused by 1) strong acids 2) concentrated
: ammonium salts 3) amonia and other small-molecule amines (like
: methylamine)

Blasting it with an excimer laser at 193 nm will cause problems after a
while.

--
--
William "Dave" Thweatt
Robert E. Welch Postdoctoral Fellow
Chemistry Department
Rice University
Houston, TX
***@ruf.rice.edu
***@us.army.mil