OttoTech Pickle is a high-grade granular dry acid compound formulated for pickling, cleaning, and removing surface oxidation and fire scale from gold, silver, and other non-ferrous metals. Composed primarily of sodium bisulfate — the same active ingredient found in Sparex No. 2 — OttoTech Pickle delivers superior cleaning performance in a safe-to-ship dry form. For best results, use at 125°F. Available in three sizes to suit studio, bench, and production-scale needs.
| Compound Type | Granular dry acid (sodium bisulfate) |
|---|---|
| Application | Pickling, oxidation removal, fire scale removal |
| Compatible Metals | Gold, silver, and other non-ferrous metals |
| Optimal Working Temperature | 125°F |
| Form | Dry granular |
| Part # | Size | Yield |
|---|---|---|
| 145.126 | 40 lb | Makes 16 gallons |
| 145.140 | 1-1/2 lb | Makes 1/2 gallon |
| 145.142 | 2-1/2 lb | Makes 1 gallon |
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