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Alfa Aesar was formed from a series of company mergers: Alfa Inorganics was founded in 1962 by Alfred Bader, in a 50:50 venture between Aldrich Chemicals and Metal Hydrides Inc. [6] [7] The purpose was to provide a source of inorganic research chemicals to sit alongside the organic chemicals of Bader's other company: Aldrich Chemicals.
Two oxides of germanium are known: germanium dioxide (GeO 2, germania) and germanium monoxide, (GeO). [4] The dioxide, GeO 2 can be obtained by roasting germanium disulfide (GeS 2) or by allowing elemental germanium to slowly oxidze in air, [5] and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. [4]
Germanium is created by stellar nucleosynthesis, mostly by the s-process in asymptotic giant branch stars. The s-process is a slow neutron capture of lighter elements inside pulsating red giant stars. [57] Germanium has been detected in some of the most distant stars [58] and in the atmosphere of Jupiter. [59]
Arsenidogermanates are chemical compounds that contain anions with arsenic bonded to germanium. They are in the category of tetrelarsenides, pnictidogermanates, or tetrelpnictides. Germanium forms two arsenides: GeAs and GeAs 2. [1]
The first organogermanium compound, tetraethylgermane, synthesized by Winkler in 1887, [3] by the reaction of germanium tetrachloride with diethylzinc. More commonly, these Ge(IV) compounds are prepared by alkylation of germanium halides by organolithium and Grignard reagents , including surfaces terminated with Ge-Cl bonds. [ 4 ]
His wild prediction comes mere months after Trump became the first Republican to win the popular vote in a presidential election in two decades, making gains in more thanb 90% of US counties.
Details of Tyler Alexander's $1 million, one-year contract with the Milwaukee Brewers: 2025 base salary: $1 million Performance bonuses: $50,000 for 40 innings $100,000 for 60 innings $125,000 for ...
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