Natural Science Forum / Chemistry / Electrochemistry / October 2004

Feel free to send me a picture or video of such after you do, at
KellyClarksonTV@cs.com

I recently upgraded from 35mm film to a 3MP Konica KD3000Z digital camera
which I bought from Ebay along with some 2400 mah nimh batteries.
The included charger was only a 2-cell simple unit, so I bought a
microprocessor controlled 4-gang fast charge unit along with some more ...

Between SOFC(solid oxide fuel cell) and PEM(proton exchange membrane),
using materials are different, but the electrochemical basis is almost
same.
And in SOFC and PEM, open circuit voltage often becomes lower than

Can anyone suggest batteries suitable for 110C?
I'm wanting to make a few tiny blobs that you throw in a pan,
and they go 'bing' and auto-simmer the ring at 99C or so.
Peak power of say a milliwatt for a millisecond.

I try to find out any description (or work out) of possible
simple method (if exist) of the quantitative determination
of significant amounts (means: not trace) of peroxyacetic
acid (PAA) in the hydrogen peroxide (H2O2) and acetic

What are the best elements/compounds to add to a liquid to increase
electrical conductivity?

I wonder if anybody could give me a direction where to buy
Saturated Calomel Electrode(SCE)?
Thanks,
Aristo

I wonder if anybody could give me a direction where to buy
Saturated Calomel Electrode(SCE)?
Thanks,
Aristo

I'm not an electrochem expert, I'm a molecular biologist by trade, but
I have an electrochem question.
I'm recently trying to grow a large amount of algae for an experiment
and they need a large amount of CO2 delivered to the water, kilogram

Ok, here's one that's been bugging me.
I have this hobby charger, that I use for maintaining lab batteries, and it
has an "automatic" mode, in that it determines number of cells and charge
current, as long as the cells are NICAD.. The docs say that it can't do this

Common black "socket hugger" AC adapters get warm when not connected
to the device.  Home much energy is lost?  
Didn't know where to post this and sci.engr seemed dead.
http://mysite.verizon.net/vze8adrh/news.html --Tim923

I can't believe they charge an extra nickel for NiCd batteries with a button
top (compared to just flat top) ... just use a small piece of aluminum foil to
wedge it into the CD player or whatever!
Look!!

It seems Non-Rechargeable batteries work better (higher current) when fast
charged, but fast charging always makes them more prone to leaking or
exploding. Anyone have a solution around this besides the obvious "Never
Recharge Non-Rechargeable Batteries"?

My portable MP3 CD player comes with two stick NiMH batteries.  The
user has the option of having the batteries completely discharged
before charging, making me think that this will give better
performance, although I thought NiMH had no memory effect, as compared