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I have a bottle of Diamine Orange that has flecks of something in it. These flecks are about the size of very coarse pepper - the largest ones are about 1/32 of an inch. They do not dissolve when I shake the bottle, and they are heavy - they fall quickly (within a second) to the bottom of the bottle.


Any idea what this is? I'm pretty sure I don't want it in my pens.





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If it is an old bottle and has had some evaporation, the flecks could be some of the dye precipitating out of solution. Orange inks are typically very saturated and form crystals around a pen's nib and feed, too. You could take some of the ink that has the flecks in it and add some distilled water to it. If the flecks dissolve, your ink was just supersaturated. If the flecks don't dissolve, I would pour the ink over the side.

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Paddler is right. I've had the same happen with Diamine Oxblood, which also has an orange component to it. I ended up junking it, which is too bad, since I loved the color. Also happened with Sheaffer Skrip Brown (Slovenia) a while ago, also very orange (for a brown!). Ended up going down the drain too. In both cases, I'm pretty sure it wasn't slime, but the consequence of evaporation. I could have diluted the inks, but I did not want to take the chance (and in both cases, the bottles were well used, with only about 1/4 of the ink left).

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interesting. I will try diluting the flecks. This particular bottle was 90% full. I don't know how old it was, as I bought it from a brick and morter retailer, but I bought it less than a year ago.


Thanks for the thoughts!

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Diamine is not known for having mold problems. Alas the yellow dyes (yes, orange) are prone to crystalizing and behaving badly. Contact Diamine for a refund.


OH, and pictures help.

Fountain pens are my preferred COLOR DELIVERY SYSTEM (in part because crayons melt in Las Vegas).

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