Can you use Xtol as soon as you mix it or do you have to wait overnight? I thought I read somewhere results were more consistent if freshly mixed Xtol was allowed to sit overnight?
Xtol: need to "age" for a day?
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No need to "age" anything. Just make sure that all (or practically all) of the solid matter is dissolved.
However, you might want your water to "age" for a few minutes to a hour before mixing your Xtol to allow air to leave water.
However, you might want your water to "age" for a few minutes to a hour before mixing your Xtol to allow air to leave water.
There is but one way to tell, do a small 6 frame test.
D76 needs to be aged for sure. Xtol at least until it naturally cools to room temp.
D76 needs to be aged for sure. Xtol at least until it naturally cools to room temp.
About dissolving, I had some surprinsgly good results last time I mixed a batch. I agitated like hell while pouring, and kept agitating until the "cloudy" aspect of part A+ water disappeared.
My arm ached after that, but there were almost no left crystals at the end the process.
Reasonable explanation from the usual suspect in (there was a url link here which no longer exists) and (there was a url link here which no longer exists) thread.
You can always mix Xtol at room temperature. I've successfully mixed Xtol at 18C, the lowest recommended by Kodak. Temperature increased to 21C while mixing.
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No need to age Xtol.
D76 and ID11 don't need to age either, they just need to cool back to room temp.
D76 and ID11 don't need to age either, they just need to cool back to room temp.
All these developers need to age and yes manufacturers recommended mixing a few hours before use, this is to allow the equilibrium reactions of the buffers etc to take place.
Ideally they are bestleft overnight, but in practice2-3 hours is usually sufficient.
Ian
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In ye oldene dayz I was taught to prepare all powdered chemistry the day before. I still do it.
Another vote for waiting a day or at least a few hours. In the case of D76/ID11, the water that goes in will be warm so you'll have to wait anyway; with xtol you don't have that issue but how do you actually tell when everything is fully dissolved? Unless you strain it... so yes, just be patient and leave it a few hours at least.
If your development temperature is not really, really accurate your results will be haphazard...EC
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