10-14-02 04:21
No 368277
      Hearing aid batteries and HgO  Bookmark   

I don't know if this is as a common as it once was, but hearing aid batteries are comprized of HgO (mercuric oxide) and a Zinc redox system.
Theoretically one could isolate the mercuric oxide and react it with HCl to obtain HgCl2 upon evaporation of the acid.
On a related note there is a battery which uses thionyl Chloride/lithium (just do a google you'll find out)
(Old P2P Cook)
10-14-02 06:12
No 368328
      Lithium battery  Bookmark   

On a related note there is a battery which uses thionyl Chloride/lithium
Isn't that the standard AA lithium battery (blue top) that all the birchers use?

Baseline Does Not Exist.
(Hive Bee)
10-14-02 06:27
No 368334
      Well terbium  Bookmark   

Your'e definitley respected in my opinion and know what your'e talking about.
I don't know.
But I do know that those Li/SOCl2 systems aren't rechargeable, so if you use deductive logic, you may arrive at such a conclusion, until expirimetation provides a definitive answer.
Kudos, P2P piece de resistance maestro tebeium!
(Hive Prodigy)
10-14-02 13:11
No 368413
      Wow  Bookmark   

SOCl2 in batteries? That would be a very expensive source for SOCl2, but not so bad if you only needed like 2g or so for some nanoscale experiment. That is really good to know. smile

Firm supporter of the "Purge The Couch!" movement. Vote for the purge today.
(Title on BackOrder)
10-14-02 17:12
No 368460
      those are the ones  Bookmark   

Thionyl chloride is the second part to the common energizer blue top lithium batteries.  The hearing aid and pacemaker batteries are commonly made from lithium and MnO2.

All paths are the same: they lead nowhere
10-15-02 17:00
No 368863
      HgO is no longer used.  Bookmark   

Environmental protection regulations and improved battery technology mean that you are unlikely to find HgO in batteries (I suppose you could find old batteries somewhere). Try for Mercury switches used in electronic devices instead - you should still be able to get them from electronics suppliers.
(Old P2P Cook)
10-16-02 05:20
No 369076
      Thionyl chloride  Bookmark   

I was wrong about the blue tops containing thionyl chloride:
As you can see, these batteries are using 1,2-dimethoxyethane and 1,3-dioxolane as solvents.

I was sure that I had recently seen an MSDS for a commercial battery using thionyl chloride as the electrolyte solvent but I haven't been able to find it today. Not in these batteries either:

Here is more on our little friend; the blue-top:

OK, now I found some stuff on thionyl chloride lithium batteries. It seems that these are perhaps produced only for OEM use and are not sold retail.

Baseline Does Not Exist.