You're right, but the concentration/partial pressure terms (dissolved vs.
gaseous) ARE temperature dependent.

"J.B. Bobbitt" wrote in message
m...
There is no temperature dependancy in Henry's Law.

I'm pretty sure.

-JBB


"George" wrote in message
...
Partial pressure of the ammonia is also affected by the lower
temperature
(vapor pressure) of the water, isn't it?

Which law is that, Henry's?

"Vince Heuring" wrote in message
om...

The more important question is the rate of reaction of the ammonia
with
your wood. Generally speaking chemical reactions are slowed by
*about*
a factor of 2 per 10 degrees Celsius. So your instincts are correct,
its probably the low temperature that's the problem, not because of
the
vapor pressure of the ammonia but because of the slower rate of
reaction with the wood. Wait until you have warmer weather.

--
Vince Heuring To email, remove the Vince.