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Response to D-76Ad -- ascorbic acid version of buffered D-76

from Patrick A. Gainer (pgainer@rtol.net)
Someone should really try this: 3 g. metol or 0.3 g. phenidone 2o g. l-ascorbic acid (Vitamin C) water to 500 ml This is solution A. For B, use any thing you like, but first try either 10% Kodalk or sodium metaborate.4H20 or 60 g. borax + 14.5 g. sodium hydroxide per liter and use 50 ml of A and 100 ml of B. The A solution keeps well. The problem with XTOL and ascorbates with phenidone in general is not that they don't keep well but that you do not have the usual warning color change when they have overstayed their leave.
(posted 8321 days ago)

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