Antibiótico e fole: o que têm em comum

1. Passo 1. Antibiótico — funciona como — Sulfonamides. The first mass-market antibacterial drugs were synthetic sulfonamides; penicillin was discovered earlier (1928) but went into production later.
2. Passo 2. Sulfonamides — evoluiu de — Synthetic dye. Prontosil was a red dye.
3. Passo 3. Synthetic dye — é feito de — Carvão mineral. Aniline from coal tar.
4. Passo 4. Carvão mineral — é material para — Coque. Coke is baked coal.
5. Passo 5. Coque — é utilizado em — Alto-forno. The fuel and reducing agent is coke (formerly charcoal).
6. Passo 6. Alto-forno — tem como parte — Fole. Air was blown in by bellows, later by blowers.

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