Brownells Neutralizing Kit For Oxynate 7 & 84 Bluing Salts

If you're a gunsmith or serious hobbyist working with Brownells Oxynate bluing salts, the Brownells Neutralizing Kit For Oxynate 7 & 84 Bluing Salts gives you a complete, compliant way to neutralize and safely dispose of spent bluing solutions. Proper disposal of caustic bluing chemistry isn't just good practice—it's necessary to keep your shop safe and keep harmful materials out of the water system. This kit handles both Oxynate No. 7 and Oxynate No. 84 formulations with a straightforward chemical process and clear guidance.

The kit includes everything needed to neutralize your bluing salts: a 50-pound bag of dry Sulfamic Acid as the primary neutralizing agent, pH test strips (100 count) to verify neutralization is complete, Potassium Iodide Starch test strips (100 count) to confirm the process, and a dropper bottle for precise application of Hydrochloric Acid. Brownells also includes detailed neutralizing instructions so you know exactly what you're doing at each step. You'll need to source two additional chemicals locally—pure household Lye and 31° Hydrochloric Acid (18° Baumé Muriatic Acid)—both of which are commonly available, though Brownells can supply the acid if you prefer.

This approach lets gunsmiths and refinishers neutralize their spent solutions responsibly rather than storing hazardous waste indefinitely or disposing of it improperly. The test strips are essential: they let you confirm the pH is safe and that any remaining iodine has been neutralized before disposal. Whether you're running a small home shop or a larger gunsmithing operation, having a documented, safe disposal method protects your equipment, your health, and the environment.

What's Included

• 50-pound bag of dry Sulfamic Acid (primary neutralizing agent)
• 100 pH color test strips (0–14 range)
• 100 Potassium Iodide Starch test strips
• Dropper bottle for Hydrochloric Acid dispensing
• Detailed neutralizing instructions

Specifications

Frequently Asked Questions

Which Oxynate bluing salts does this kit neutralize?

This kit is designed to neutralize both Brownells Oxynate No. 7 and Oxynate No. 84 bluing salts using the included Sulfamic Acid and the chemical process outlined in the instructions.

What chemicals do I need to source separately?

You'll need to obtain pure household Lye and 31° Hydrochloric Acid (also called 18° Baumé Muriatic Acid) locally. Both are commonly available through hardware and chemical suppliers. Brownells can supply the Hydrochloric Acid if you prefer to order it with the kit.

How do I know when the bluing salts are fully neutralized?

The kit includes 100 pH test strips (0–14 range) and 100 Potassium Iodide Starch test strips so you can verify neutralization is complete before disposal. The instructions guide you through the testing process.

Can I dispose of neutralized solution down the drain?

Once properly neutralized and tested safe using the included test strips, the solution is safe for sanitary sewer disposal. Follow all local regulations and the detailed instructions provided with the kit.