Prologue Charcoal Silicates Units Mead Ceramics Textiles Metathesis Alkali Metals Lime Redox Dyes Glass Paper Stoichiometry Alcohol Gunpowder Acid Soap Soda Batteries Aniline Dyes Photography Tempus Fugit Alternative Processes Prerequisites to Photography Foundations of Photography Reduction The Emulsion Fixing Alternative Silver Material Safety Emulsion Coating the Paper Sensitizing the Paper Exposing the Paper Fix, Rinse, Dry Ammonia Electrochemicals Pharmaceuticals Fertilizers Plastics Epilogue | Reduction
A piece of paper soaked with silver nitrate turns black upon exposure to light. Skin painted with silver nitrate turns black. When silver is reduced, what is oxidized? Skin or paper. But the whole paper turns black, not just the surface. |