Because the product already comes as a 10% solution I am unclear if when others refer to 10% they mean using it straight, or their 10% refers to 10% of the product mixed with 90% water and not to the actual ammonia content of what we are working on our pens with. I see other posts refer to a 10% ammonia solution. Add 100 ml 90 methyl alcohol and 10 ml glycerine. Leave the mixture exposed to air and light for 4 days. Mix the solution with 400 ml ammonia solution. You mentioned that household ammonia is a 10% solution to begin with, so in reality we are making a 1% ammonia solution. Preparation: Dissolve 4 g haematoxylin in 25 ml 90 ethyl alcohol. To make sure you are suggesting I used 10 parts of water and 1 part of household ammonia. Works great and thus far no damage to any of my pens. I have been using this formulation to clean nibs and feeds and use it in my ultrasonic cleaner. Hi from what I've gleaned from here at FPN (search: Ammonia) since my time here.the most common solution I see is a 10:1 dilution of H2O:ammonia, using plain old clear, household ammonia (which I believe is a 10% solution itself). Is there a specific type of ammonia that should be used? For example, is household ammonia suitable? Are there any words of caution from the experts out there? I've often read that some people use dilute ammonia solutions to clean ink-clogged nibs and feeds.
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