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<p> 30 g Ferric Sulfate<br />
<p> 30 g Ferric Sodium-EDTA<br />
no edit summary
== Bleach solution ==
=== Original formula ===
30 g di-Sodium EDTA<br />
30 g Potassium Bromide<br />
10 ml Sulfuric Acid (Conc.)<br />
One litre water</p>
=== Revised formula ===
30 g Potassium Bromide<br />
30 g Sodium Bisulfate<br />
One litre water</p>=== Processing ===
<p><u>Bleaching time:</u> One and a half times the time it takes to clear.</p>
<p><u>Temperature:</u> 20C <u>Agitation:</u> Intermittent</p>
