New molecule could mean better rocket fuel

Swedish scientists say they've discovered a molecule that could lead to new rocket fuels that are 20 percent to 30 percent more efficient than now.

Researchers at the Royal Institute of Technology (KTH) discovered the new molecule in the nitrogen oxide group and dubbed it trinitramid, a release from the Swedish Research Council reported Wednesday.

More efficient fuels translate into bigger rocket payloads, the researchers said.

"A rule of thumb is that for every 10 percent increase in efficiency for rocket fuel, the payload of the rocket can double," Tore Brinck, professor of physical chemistry at KTH, said. "What's more, the molecule consists only of nitrogen and oxygen, which would make the rocket fuel environmentally friendly.

"This is more than can be said of today's solid rocket fuels, which entail the emission of the equivalent of 550 tons of concentrated hydrochloric acid for each launch of the space shuttle."

"As mentioned, what is specific to this molecule is that it contains only nitrogen and oxygen. Only eight such compounds were previously known, and most of them were discovered back in the 18th century," he said.

The scientists have managed to produce enough of the compound in a test tube for it to be detectable and subject to analysis.

UPI

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