Quote:
Originally Posted by schwefel  I did some searching, on here and am not finding much.
I am looking for the formula for determining the temperature compensation for developers. Based on what I remember from chemistry class, I came up with the following formula:
(10th root of 2)^ΔT for Celcius.
[10th root of 2 raised to the differece in temperature]
When looking at some of the charts I found online, it does not match up.
Anyone out here know the formula?
Thanks,
Jason
Jason |
Developers with one agent can have a defined delta, but each agent is different, although most of the common ones are pretty similar. Developers with two agents, with the ususal hydroquinone as one, is valid only in a narrow range. HQ changes activity at four times the rate of Metol, for instance (IIRC). Therefore, the negative characteristics will change with any significant change in temperature.