Results 321 to 330 of about 143,050 (344)
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The zirconium content of chondrites and the zirconium-hafnium dilemma

Geochimica et Cosmochimica Acta, 1964
Abstract An attempt has been made to estimate the Zr content of chondrites, using an X-ray spectrographic technique, so as to resolve recent conflicting results in the literature. On the basis of eight analyses our results serve to confirm those of Schmitt .
Anthony J. Erlank, J.P Willis
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Titanium, zirconium, and hafnium

1974
1Titanium Inorganic Compounds.-React ion be tween 0x0titanium octaet hy lporphyrin and benzoyl peroxide gives a peroxotitanium porphyrin complex in which the 0, group is bonded to the metal in a sideways fashion1 The Ti-0 distances are 1.822,
L. E. Sutton   +2 more
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Determination of zirconium in zirconium metal and zirconium powder by use of mandelic acid

Analytica Chimica Acta, 1966
Abstract An accurate gravimetric method is proposed for the determination of zirconium in zirconium metal and zirconium powder by use of mandelic acid. The sample is dissolved in a mixture of hydrofluoric, nitric, perchloric and sulfuric acids, the solution is evaporated to dryness, and the salts are dissolved in dilute hydrochloric acid.
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Zirconium nitride catalysts surpass platinum for oxygen reduction

Nature Materials, 2019
Yao Yuan   +7 more
semanticscholar   +1 more source

Removal of arsenate from contaminated waters by novel zirconium and zirconium-iron modified biochar.

Journal of Hazardous Materials, 2020
M. Rahman   +7 more
semanticscholar   +1 more source

Interaction of zirconium tetrachloride with metallic zirconium [PDF]

open access: possibleSoviet Atomic Energy, 1968
L.N. Komissarova   +3 more
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Zirconium Phosphonates

2011
This contribution presents a survey of the various aspects of the chemistry of Zr phosphonates, throughout 30 years of activity of the Laboratory of Inorganic Chemistry of Perugia on this topic. These inorganic–organic compounds are characterized by a very low solubility and chemical robustness, and their structure and reactivity can be easily ...
VIVANI, Riccardo   +2 more
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A robust large-pore zirconium carboxylate metal–organic framework for energy-efficient water-sorption-driven refrigeration

Nature Energy, 2018
Sujing Wang   +12 more
semanticscholar   +1 more source

Zirconium and zirconium alloys

2011
Klaus John   +2 more
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