Bromine Water 2% Do-It-Yourself instructions [no longer sold as an item]

Bromine Water 2% – DIY Instructions
(No longer sold as a prepared item. Use this method if required.)

Equipment & Reagents

• 1 × Amber Glass Bottle, 1L [1000SU-1L]
• Sodium Bromide, 28 g [46208-100g]
• Sodium Chlorite, 22 g [46608-100g]
• Hydrochloric Acid 4.9%, 180 g [27238-P-1L]
• Deionised (DI) water
• Balance, fume hood, PPE

Safety Precautions

• Perform all steps in a fume hood – bromine vapours are toxic.
• Wear lab coat, gloves, and safety glasses.
• Label final solution: “Bromine Water 2% – Toxic / Corrosive”.

Method

1. Place the clean 1L amber glass bottle on a balance and record its tare weight (empty weight). The final solution must be made up to tare weight + 1000 g.

2. Add 28 g sodium bromide [46208-100g] into the bottle. Rinse in any remaining solid with DI water.

3. Add 22 g sodium chlorite [46608-100g], rinsing in with DI water.

4. Add DI water to bring the liquid level to approximately 500 mL. Swirl gently until dissolved.

5. Carefully add 180 g of 4.9% hydrochloric acid [27238-P-1L]. Bromine will begin forming at this stage.

6. Quickly make the solution up to the final required mass (tare + 1000 g) with DI water.

7. Cap the bottle securely and invert to mix.

Notes

• The method yields approximately 500 mL of 2% bromine water.
• Store in a cool, dark place in the amber bottle with the lid tightly sealed.
• Dispose of unused solution according to hazardous waste protocols.

Download Full Instructions Here – Bromine Water 2% DIY Instructions