James:
You ask a sort of wide open question...as the term "non-nitrite" is pretty wide open.
Non-Nitrite Corrosion inhibitors can include Silicates (questionable rinsing), organics, and other Molybdenum types, which inhibit by immersion plating.

Nitrites may well be the safest for electronics, because they rinse completely, leaving no residues.  Of course this is a downside also, as once the part is rinsed, it is no longer protected.

Nitrites also only work in neutral or alkline solutions.

Rudy Sedlak
RD Chemical

"Marsico, James" <[log in to unmask]> wrote:
Good day,

Not a typical electronics assembly question, but one for the Chemists. What
would the pros and cons of a nitrite based corrosion inhibitor (to be added
to a non-stainless steel water-only parts cleaning system) vs. a non-nitrite
inhibitor. What residues might I expect on my parts when cleaned with
either corrosion inhibiting chemistry?


Thanks in advance,

Jim Marsico
Senior Engineer
Production Engineering
EDO Electronics Systems Group
[log in to unmask]
631-595-5879

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