- Water baths or hotplates
- 1 L of 0.8-0.9 M H2O2 in water with 0.001 M H2SO4 stored in the refrigerator for stability.
- 1.5 L of 0.05 M acetate buffer (0.05 M acetic acid and 0.05 M sodium acetate in same solution)
- 1.5 L of 0.05 M potassium iodide
- 1 L of 0.1% starch solution
- 500 mL of 0.05 M sodium thiosulfate – Must be made fresh.
- 200 mL of 1.76 g/L of (NH4)6Mo7O24.4H2O
Instructions for making chemicals
- H2O2 solution – This is about 3% solution, which is what is found in the store. I used our concentrated H2O2 solution (listed at 30%) but made diluted it 2:10 instead of 1:10 since it had been sitting around for a while, and that seemed to work fine.
- Starch solution – Take 10 g of starch and suspend in about 100 mL of water. Add to 900 mL of boiling water and stir until translucent. Cool and bottle. Store in the refrigerator.
Waste bottles needed.
- Hydrogen Peroxide – Exclamation point – respiratory tract irritant; Corrosion – skin corrosion/burns; Corrosion –eye damage; Environmental – aquatic toxicity
- Sulfuric Acid – Corrosion – Skin corrosion/burns; Corrosion – eye damage; Corrosion – Corrosive to metals
- Acetic Acid –Flame – flammable; Corrosion – skin corrosion/burns; Corrosion –eye damage
- Sodium Acetate – None
- Potassium Iodide – Health hazard – Damage to organs through prolonged exposure
- Starch – None
- Sodium thiosulfate – None
- Ammonium Molybdate – None