Robertet

Jacobi's coconut-shell activated carbon — steam-activated at 900°C to create 1200 m²/g surface area — adsorbs PFAS, chlorine, and volatile organics from drinking water. A single gram holds the surface of a football field.

Saint-Gobain, founded in 1665 by Louis XIV to make mirror glass, now produces flat glass via the float process — molten tin supporting molten glass at 1100°C. 360 years of glass chemistry, from Versailles mirrors to smartphone covers.