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PBr3 -> PCl3 "New" Old Method
Do you prefer a private apology or a public one? I will do either or both.

That link works. I can ...
18-2-2009 at 20:27
by: Sauron
Inorganic Phosphorus Transformations
As of 2/09 most of my goals in this area have now been achieved, at least on paper.

I set out som ...
18-2-2009 at 20:06
by: Sauron
Eureka!
I have found what appears to be the solution of this problem.

According to the attached US patent ...
18-2-2009 at 07:17
by: Sauron
PBr3 -> PCl3 "New" Old Method
I would be wary of distilling it or refluing it under anything but Ar.

At ambient, any reactions ...
18-2-2009 at 06:56
by: Sauron
PBr3 -> PCl3 "New" Old Method
I have a liter of PBr3. I pay approx 2X the ex works price, which is shipping and import costs. I do ...
18-2-2009 at 03:24
by: Sauron
Something Else to Do with Your Red P
The above reaction, the disproportionation of SO2Cl2 and SCl2, is taken from the old literature. I d ...
18-2-2009 at 03:13
by: Sauron
PBr3 -> PCl3 "New" Old Method
PS to above

Philosophical Magazine, started in 1798, is the flaship publication of Taylor & C ...
18-2-2009 at 02:13
by: Sauron
PBr3 -> PCl3 "New" Old Method
I do not know where (or if) I can lay hands on Philosophical Magazine in syberspace.

J.prakt.Chem ...
18-2-2009 at 01:21
by: Sauron
Another "Two-for" Reaction CCl4 + PSCl3
I just love it when both products of a reaction are desirable and hard to obtain.

I previously ha ...
17-2-2009 at 22:47
by: Sauron
PBr3 -> PCl3 "New" Old Method
Hold on, you are going to do BrCCl3 to CCl4. That is fine with N2. I am talking PBr3 -> PCl3. and ...
17-2-2009 at 19:23
by: Sauron
PBr3 -> PCl3 "New" Old Method
Better make that Ar. N2 often reacts with P compounds.

Br2 has very limited solubility or miscibi ...
17-2-2009 at 12:33
by: Sauron
PBr3 -> PCl3 "New" Old Method
Thanks. I have not forgotten your suggestions..

HgCl2 MW 271.5
HgBr2 MW 360

CCl4 MW 152

Br ...
17-2-2009 at 09:08
by: Sauron
PBr3 -> PCl3 "New" Old Method
Yes I actually dug up papers on the UV photolysis, using special Kopp Glass filters to avoid the sid ...
17-2-2009 at 02:04
by: Sauron
PBr3 -> PCl3 "New" Old Method
Thanks, Nicodem, and very interesting.

How would you suggest accomplishing the replacement of Br ...
17-2-2009 at 00:53
by: Sauron
Something Else to Do with Your Red P
Well the disproportionation reaction looks good on paper.

And there are similar disproportionatio ...
17-2-2009 at 00:12
by: Sauron
Something Else to Do with Your Red P
One at a time:

Yes the tin reduction is interesting, I will have another look, thanks.

SO2 + C ...
16-2-2009 at 23:18
by: Sauron
Something Else to Do with Your Red P
No, I do not own this site. Neither do you. Your repeated attempts to derail this thread remain unap ...
16-2-2009 at 21:36
by: Sauron
PBr3 -> PCl3 "New" Old Method
In a PM a member commented that Br2 liberated in this fashion will combine with unreacted PBr3 to fo ...
16-2-2009 at 20:40
by: Sauron
Yet ANOTHER Thing to Do with Your Red P
Here is another gem from Mellor vol 8 and also from Prideaux:

According to Kochlin and Heumann in ...
16-2-2009 at 19:01
by: Sauron
Something Else to Do with Your Red P
True. But two considerations:

1. If POCl3 is not in excess, or better, if Ag is in excess, those ...
16-2-2009 at 17:49
by: Sauron
NaCl Hydrates?
No. Not if we can rely on Merck Index. No hydrates.
16-2-2009 at 10:54
by: Sauron
PBr3 -> PCl3 "New" Old Method
Isn't it nice to have support for a specific application?

I regard my PBr3 as too precious to ch ...
16-2-2009 at 07:46
by: Sauron
PBr3 -> PCl3 "New" Old Method
We have previously discussed the conversion of PBr3 to red P using Hg in the manner described in the ...
16-2-2009 at 06:47
by: Sauron
Something Else to Do with Your Red P
If you read Goldschmidt you will see the reaction did not requite temperatures outside of 100-200 C. ...
15-2-2009 at 10:02
by: Sauron
Something Else to Do with Your Red P
I cleaned up the Goldscmidt pages a little in Photoshop, so they are more readable. Attached below.
...
15-2-2009 at 05:04
by: Sauron
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