Red-burning pyrotechnic flare formulations without chlorine

The carmine color of pyrotechnic flares used in military and civilian environments arises from the combustion of strontium salts, some based on chlorides. The military-launched search for chlorine-free formulations has recently ...

Curiosity rover: No big surprise in first soil test

(Phys.org)—NASA's Mars Curiosity rover has used its full array of instruments to analyze Martian soil for the first time, and found a complex chemistry within the Martian soil. Water and sulfur and chlorine-containing substances, ...

Low temperatures enhance ozone degradation above the Arctic

Extraordinarily cold temperatures in the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far: The mechanisms leading to the first ozone hole above the North Pole were studied ...

Missing piece inspires new look at Mars puzzle

(PhysOrg.com) -- Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life.

NASA Study Sheds Light on Ozone Hole Chemistry

(PhysOrg.com) -- A new NASA study of Earth's polar ozone layer reinforces scientists' understanding of how human-produced chlorine chemicals involved in the destruction of ozone interact with each other.

Open Lid Reveals Mercury

(PhysOrg.com) -- Mercury, the silvery liquid formerly used in thermometers, is now known to be highly toxic. The worst of the toxins are organic mercury compounds, such as methylmercury. Most previous analytical procedures ...

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