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Nitric acid is generated via the Ostwald process by oxidation of ammonia with air over a platinum catalyst at 700–850 °C (1,292–1,562 °F), ≈9 atm. Nitric oxide and nitrogen dioxide are intermediate in this conversion: [44] NH 3 + 2 O 2 → HNO 3 + H 2 O. Nitric acid is used for the production of fertilisers, explosives, and many ...
The Nobel announcement illustrated this by saying that a 1 square meter graphene hammock would support a 4 kg cat but would weigh only as much as one of the cat's whiskers, at 0.77 mg (about 0.001% of the weight of 1 m 2 of paper). [141] Large-angle bending of graphene monolayers with minimal strain demonstrates its mechanical robustness.