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dennis_oconnor6

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Everything posted by dennis_oconnor6

  1. <p>This is not intended to be a stupid question.<br> Is there any advantage in shooting black and white negative film with the deliberate intention of scanning it to produce digital negatives. Or should I just shoot digital and convert it using software. I suppose one advantage is I will still have a negative to print from in the darkroom. And I still like shooting and processing film.</p>
  2. <p>Thanks for your replies. I just checked and it is Ascorbic Acid (pharmaceutical grade Vitamin C). I have made the TEA version without any problems. I thought the idea of prop/glycol was that you did not have to heat it! What temperature are you heating it to? As hot as TEA?</p>
  3. <p>I decided I wanted to make some PC-Glycol 2 part developer. I found the following recipe.<br> Part A<br> Propylene Glycol 100ml<br> Ascorbic Acid (Vit C) 9g<br> Phenidone 0.2g.</p> <p>How ever when I added the Ascorbic Acid to the Glycol it would not totally dissolve. I even heated the glycol - same result.<br> I found on the www. that Ascorbic Acid solubility in Propylene Glycol = 1g in 20ml. That means for 100ml glycol I can only dissolve 5g of ascorbic acid. Which is about half that quoted in the formula. OR am I missing something?</p> <p>Dennis</p>
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