10M NaOH

Preparation

Target volume

Unit

Step 1. Prepare an ice bath before starting — this reaction generates substantial heat

Step 2. Add approximately 500 mL distilled water to a 2 L beaker sitting in the ice bath.

Step 3. Slowly add NaOH pellets in small portions to the water — never add water to pellets

Sodium Hydroxide

400 g

Step 4. Stir constantly between additions — allow each portion to dissolve before adding more.

Step 5. Keep beaker in ice bath throughout — solution will reach 80–90°C without cooling.

Step 6. Once all pellets are dissolved and solution has cooled to room temperature, transfer to a 1 L volumetric flask.

Step 7. Bring to final volume with distilled water, mix thoroughly, and trasnfer to a polyethylene or polypropylene bottle.

Step 8. Bring final volume to 1000 mL with distilled water.