11-06-02 09:45
No 376995
Someone may have already found this(I admit I havn't UTFSE). But I thought this was interesting...
Preparation of Hydrogen Chloride.
Gaseous hydrogen chloride (HCl) is generated by heating 2.0 g anhydrous sodium hydrogen sulfate (sodium bisulfate) NaHSO4 (or 2.3 g sodium hydrogen sulfate (sodium bisulfate) monohydrate NaHSO4.H2O) and 1.0 g sodium chloride, NaCl together in a test tube by the Thermal Method (See details) according to the reaction:
NaHSO4(s) + NaCl(s) HCl(g) + Na2SO4(s)
Our original article called for heating the mixture with a Bunsen burner flame. Here we report that similar results can be obtained with a microwave oven. The general procedure described for methane is followed, except that a smaller test tube is used. It typically takes 2 - 3 minutes in a microwave oven running on the highest setting to generate 50-mL HCl(g). Check the progress of the reaction every 30 seconds.
We have described eight experiments that can be performed with gaseous hydrogen chloride. (See details)
I would guess the HCL to be anhydrous, which could be interesting.
Here is the URL.
http://mattson.creighton.edu/MicrowaveMe
And on the eight day, God created Meth...
... and hasn't done much of anything usefull since!
(Hive Addict)
11-07-02 19:41
No 377352
A new way..":<)
I think the (in)famous aquarium pump air blower may find
a new use....
":<)
cool..
dwarfer
(Hive Addict)
11-07-02 22:38
No 377388
So how does it do when you substitute NaBr or NaI for NaCL?
Who is that masked man?
(Hive Bee)
11-08-02 14:18
No 377648
One question that still lingers in my mind is whether the mono-hydrate would result in H20 vapor being present in the HCL vapor.
I guess you would find out when you started gassing!
And on the eight day, God created Meth...
... and hasn't done much of anything usefull since!
(Hive Bee)
12-17-02 14:42
No 390216
Thinking back on this, I too am curious what would result from heating other metal halides with sodium hydrogen sulfate...
Could this be possible...
NaHSO4(s) + NaI(s) -> HI(g) + Na2SO4(s)
If so, I would assume that you could lead a small tube out of the microwave and catch the hydrogen iodide in water.
If you guys say this might work, a friend of mine is willing to tear up a microwave, I happen to have a microwave leakage detector that's long overdue for use in a major felony.
Let me know,
TrickE
And on the eight day, God created Meth...
... and hasn't done much of anything usefull since!
(Chief Bee)
12-18-02 00:01
No 390329
Sulfate may oxidize HI to I2, unfortunately. Use phosphoric or phosphorous acid instead.
(Hive Bee)
12-18-02 09:27
No 390468
Let me see if I understand, cuz that sounds interesting.
Phosphoric + NaI + microwave heating -> HI
That would be cool as shit. What concentration of Phosphoric would you think necessary to have a decient chance of success? The 20-25% stiff falls off of trees, the 70% is a bit harder to get, but doable if required.
And on the eight day, God created Meth...
... and hasn't done much of anything usefull since!
(Chief Bee)
12-18-02 21:13
No 390568
Try to adapt ../rhodium /hydriod