Need Generic names?

Question

Hi I work for a small company and need some help.
My predesesor left me with some VERY poor notes.
we use a small part that has been nickle plated.
The nickle must be removed on one portion only.
This is done with a sulferic acid bath lined with lead and energizing the part as the cathode @ 17 volts DC for twenty minutes.
Typically after the deplating proccess I apply one drop of nitric acid to the desired area to be deplated. I then wipe off the nitric acid with a small piece of filter paper.Then I place one drop of the indicator solution on the filter paper and check the color of this reaction.(brown= good) (red=nickle still present)
My problem is I am almost out of indicator solution and I can not determine it's make up.
I have a list telling me what the make up is but only have been able to identify two of the four chemicals involved.

indicator solution;
10 grams-NH4CH2COOH = Unknown
60 ml. - CH3COOH = acetic acid glacial
1 gram - DICH3COOH = Unknown
30 ml. - NH4OH = ammonium hydroxide

Any ideas as to what my unknowns are?

ANY HELP WOULD BE GREATLY Appreciated

Answer 1

NH4CH2COOH is ammonium acetate (though it is written incorrectly, should be CH3COONH4)

I'm not sure you have the third one written correctly -- the DI part shouldn't be there, because the rest CH3COOH is just acetic acid again. Check the label again . . .

In checking Google, there are several "nickel indicator solutions" out there, and all use dimethyl glyoxime as the active ingredient -- perhaps that's what you're looking for?

Answer 2

NH4CH2COOH would be ammonium methyl acetate.
DlCH3COOH would be diluted acetic acid. Presumably it's not actually a compond of deuterium and iodine and vinegar.