Naxidic Features The following rules of thumb can be used in respect to Naxidic acid. Hydrochloric acid Rules of Thumb - Dilute the solution one ratio If your basic pickle is a ratio of 1:2 ( one part by volume of acid to two parts by volume water) you can probably operate at a 1:3 ratio.
- Drop one grade acid If you charge at a 1:2 ratio using a 22 degree acid you can charge at the same ratio using a 20 degree acid. You can generally drop one grade of acid and get the same results as if using the higher, stronger grade of acid at equivalent ratios.
- Use less acid You can reduce your acid concentration by 2% by weight and get the same results under your previous practice.
- Pickle colder You can reduce the temperature of the acid two to five degrees C (five to ten degrees F). Improved ambient temperature pickling in cold months.
- Improved reaction time Naxidic acid will always out-perform its equivalent commercial grade acid.
Sulfuric Acid Rules of Thumb - Pickle colder You can run two to five degrees C ( five to ten degrees F) colder in temperature.
Use less acid You can reduce the acid concentration by 2 percent by weight.
Cleaner pickle Improved surfaces for zinc phosphate deposition.
Improved reaction time Get better pickling from recovered acid. - When pickling with depolarizers you have an accelerating effect which turns on and off depending on presence of soluble oxides. Once the soluble oxides are removed the accelerator stops and the inhibitor takes over. This is not possible with systems which must rely solely on wetting agents.
- Surfaces are 28% brighter due to the type of etch afforded by these accelerators. The cleaner pickled surface improves zinc deposition when hot dip or electro galvanizing.
- A less aggressive acid media improves bath life and reduces rates of iron buildup.
Mill scale is not a simple iron oxide but one which is very complex and its timely removal depends on an acid which is ready to react with even the toughest combination of oxides. When conventional acid meets up with this situation immersion times may be increased to assure removal. The same oxide pickled with Naxidic Acid is more likely to be removed in its normal time. Naxidic acid, although more powerful than conventional acid is not an expensive upgrade. The money saved through improved acid consumption , energy conservation, and related labor savings well exceeds the slight surcharge for the Naxidic conversion. | 
