Ammonia in the cleaning solution

[matheusion]

Checking some forum threads, I found the formula for pharmacist's cleaning solution. But what ammonia should I use? Ammonium hydroxide, quaternary ammonium, or some other?

 

[The Hat]

Not Ammonium, it's Ammonia.. This stuff in very small quantities..
To much is worse than to little.. it's good for cleaning but not for soaking..

 

[PeterBJ]

Ammonia is a gas that is soluble in water, forming an ammonia solution. When the gas is dissolved in water some ammonium hydroxide is formed. The solution is sold under many trade names, one is ammonium hydroxide, but the important thing to check is the strength of ammonia in % and that no other things are added to the solution.

Normally the concentrated ammonia solution is approximately 25% but the solution is often sold in lower strengths.

Here is a post with the recipe for "pharmacist's cleaning solution", and here is a post with more about preparation the cleaning solution.