Archive for the ‘Rhodium’ Category
Tuesday, August 28th, 2007
Stop: Without this element, you'd be paralyzed. It helps move muscles and builds strong bones. It also forms gross soap scum in your shower. What is it? Grab a periodic table (next page) and follow these eight clues to find out. Then turn the page to test your chem IQ.
--Gretchen ...
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Tuesday, August 28th, 2007
Nuclear chemistry is the study of the chemical and physical properties of elements as influenced by changes in the structure of the atomic nucleus. Modern nuclear chemistry, sometimes referred to as radiochemistry, has become very interdisciplinary in its applications, ranging from the study of the formation of the elements in ...
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Tuesday, August 28th, 2007
An improved material system has been developed for rocket engine combustion chambers for burning oxygen/hydrogen mixtures or novel monopropellants, which are highly oxidizing at operating temperatures. The baseline for developing the improved material system is a prior iridium/rhenium system for chambers burning nitrogen tetroxide/monomethyl hydrazine mixtures, which are less oxidizing. ...
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Tuesday, August 28th, 2007
Electron-excitation and translational energies can be selected. NASA's Jet Propulsion Laboratory, Pasadena, California
An arc-jet source of chemically active nitrogen atoms has been developed for use in molecular-beam epitaxy (MBE) to grow such III-V semiconductors as nitrides of gallium, aluminum, and indium. This apparatus utilizes a confined arc to thermally excite ...
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Tuesday, March 27th, 2007
Background
Williams Advanced Materials has over 90 years of experience with providing precious metal recovery services to our valued customers. Williams has built a strong reputation for providing industry leading refinery services and the highest precious metal returns. We offer full service refining solutions and total precious metal management with the ...
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Tuesday, December 5th, 2006
NovaGold Resources Inc. had 11 companies expressing interest in the firm before Barrick Gold Corp. made its hostile $1.7 billion takeover bid, and CEO Rick Van Nieuwenhuyse says some have suggested they would be back if Barrick withdrew.
"Most of the companies indicated to us that they didn't really want to ...
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