Catalysis and refrigerator: what they have in common

1. Step 1. Catalysis — is used in — Haber–Bosch process. An iron catalyst.
2. Step 2. Haber–Bosch process — is used in — Ammonia. The Haber–Bosch synthesis.
3. Step 3. Ammonia — is material for — Refrigerant. Ammonia was one of the first refrigerants.
4. Step 4. Refrigerant — is used in — Refrigerator. A refrigerant.

Open Evothings