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Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...
Cost: $53.37 per gram. Iridium is a hard, silvery metal that is one of the rarest in the world. ... Cost: $100,000 per kilogram. ... it requires several hundred million pounds just to create one ...
15. Iridium. Cost: $162.26 per gram. Iridium is a hard, silvery metal that is one of the rarest in the world. It's also extremely corrosion resistant. Iridium is mainly used as a hardening agent ...
Iridium in bulk metallic form is not biologically important or hazardous to health due to its lack of reactivity with tissues; there are only about 20 parts per trillion of iridium in human tissue. [22] Like most metals, finely divided iridium powder can be hazardous to handle, as it is an irritant and may ignite in air. [66]
Cost per launch: US$12 million ... 1,479 kg (3,261 lb) Payload to SSO; Altitude: 500 km (310 mi) ... Iridium has ordered a Terran to launch one of the 6 on-orbit ...
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Each kilogram of the fission products of 235 U will contain 63.44 grams of ruthenium isotopes with halflives longer than a day. Since a typical used nuclear fuel contains about 3% fission products, one ton of used fuel will contain about 1.9 kg of ruthenium. The 103 Ru and 106 Ru will render the fission ruthenium very radioactive.