With a bit of luck there will be enough bright days over the winter so that I can continue to experiment with salt printing here at 50°N, albeit with longer exposure times... however I have read (Young) that below about 5°C the reduction reaction is extremely limited.
I've put a print out just now (out of direct sunlight but facing clear blue sky), and the temperature outside is about 3-4°C, so I'll soon see ... but I'm interested to hear if others' experience confirms or contradicts Young.
Be interesting to hear from any comments from chemists about what theory says too.
I've put a print out just now (out of direct sunlight but facing clear blue sky), and the temperature outside is about 3-4°C, so I'll soon see ... but I'm interested to hear if others' experience confirms or contradicts Young.
Be interesting to hear from any comments from chemists about what theory says too.
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