Prerequisites to Photography

Silver

• Argentite: Ag₂S

• Silver Oxide: 2 Ag₂S + 3 O₂ = 2 Ag₂O + 2 SO₂

• Silver: 2 Ag₂O + C = 4 Ag + CO₂

Paper

• Soda Ash: Na₂CO₃

• Limestone: CaCO₃

• Lime: CaCO₃ = CaO + CO₂

• Caustic Soda: CaO + Na₂CO₃₃ + H₂O = 2 NaOH + CaCO₃

Nitric Acid

• Saltpeter: KNO₃

• Sulfur: S

• Sulfuric Acid: SO₃ + H₂O = H₂SO₄

• Nitric Acid: H₂SO₄ + 2 KNO₃ = K₂SO₄ + 2 HNO₃