Experiments on Solarization

21 grams hydroquinone. 1000 grams water. 252 grams Na2C03. Homolka1 cites a very interesting case where an exposed plate previously immersed in a dilu...
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EXPERIMENTS ON SOLARIZATION. I1 B Y C. A . PERLEY

The following work was undertaken in order to account for the remaining doubtful points in regard to the whole subject of solarization. This represents a coni inuation of the previous work and the same stock developer was utilized. __-____

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Solution A 1000 grams

water 126 grams Na,SO,

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Solution B 1000grams 252 grams

water Na,CO,

G. A . Perley

686

Plates were immersed in a solution of stannous chloride for varying intervals of time and after a thorough washing were developed in the indoxyl developer. In Table I are tabulated the best data : TABLEI ___

Number

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Stannous chloride solution

25 g. in

IOO 11

1L 1L

I