Gallium Metal 50 Grams, 99.99% Pure Melting Gallium - 50g Vial

Product Information

Semiconductor applications dominate the commercial demand for gallium, accounting for 98% of the total. The next major application is for gadolinium gallium garnets. [67] Semiconductors [ edit ] Gallium-based blue LEDs Yu, H. -S.; Liao, W. -T. (2011-01-01), "Gallium: Environmental Pollution and Health Effects", in Nriagu, J. O. (ed.), Encyclopedia of Environmental Health, Burlington: Elsevier, pp.829–833, doi: 10.1016/b978-0-444-52272-6.00474-8, ISBN 978-0-444-52272-6 , retrieved 2023-04-03

as another possible gallate anion, [33] it was not found in later work. [32] Oxides and chalcogenides [ edit ]Gallium has 31 known isotopes, ranging in mass number from 56 to 86. Only two isotopes are stable and occur naturally, gallium-69 and gallium-71. Gallium-69 is more abundant: it makes up about 60.1% of natural gallium, while gallium-71 makes up the remaining 39.9%. All the other isotopes are radioactive, with gallium-67 being the longest-lived (half-life 3.261days). Isotopes lighter than gallium-69 usually decay through beta plus decay (positron emission) or electron capture to isotopes of zinc, although the lightest few (mass numbers 56–59) decay through prompt proton emission. Isotopes heavier than gallium-71 decay through beta minus decay (electron emission), possibly with delayed neutron emission, to isotopes of germanium, while gallium-70 can decay through both beta minus decay and electron capture. Gallium-67 is unique among the light isotopes in having only electron capture as a decay mode, as its decay energy is not sufficient to allow positron emission. [27] Gallium-67 and gallium-68 (half-life 67.7min) are both used in nuclear medicine. Gallium can be used for making several very low melting point alloys, some as low as -18 degrees Celsius using Tin and Indium! It is used as a non-toxic mercury alternative in some applications. You get a plastic test tube (83x12mm including lid) containing just over 10 grams of pure Gallium.

Germany and Kazakhstan also produced it in the past. After prices rallied in 2020 and 2021, Germany announced that it would restart primary gallium production. Magnum, B. W.; Furukawa, G. T. (August 1990). "Guidelines for Realizing the International Temperature Scale of 1990 (ITS-90)" (PDF). National Institute of Standards and Technology. NIST TN 1265. Archived from the original (PDF) on 2003-07-04. Gallium is a chemical element with atomic number 31 which means there are 31 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10 -19 coulombs. a b c McAlister, Jason A.; Orians, Kristin J. (20 December 2015). "Dissolved Gallium in the Beaufort Sea of the Western Arctic Ocean: A GEOTRACES cruise in the International Polar Year". Marine Chemistry. 177 (Part 1): 101–109. Bibcode: 2015MarCh.177..101M. doi: 10.1016/j.marchem.2015.05.007 . Retrieved 29 August 2021– via ScienceDirect.Crisp, D.; Pathare, A.; Ewell, R. C. (2004). "The performance of gallium arsenide/germanium solar cells at the Martian surface". Acta Astronautica. 54 (2): 83–101. Bibcode: 2004AcAau..54...83C. doi: 10.1016/S0094-5765(02)00287-4. GaCl can also be produced by reacting Ga with HCl at 950°C; the product can be condensed as a red solid. [29] :1036

Kharpal, Arjun (2023-07-04). "What are Gallium and Germanium? China curbs exports of metals critical to chips and other tech". CNBC . Retrieved 2023-07-04.a b c Shiller, A. M. (June 1998). "Dissolved Gallium in the Atlantic Ocean". Marine Chemistry. 61 (1): 87–99. Bibcode: 1998MarCh..61...87S. doi: 10.1016/S0304-4203(98)00009-7. Downs, Anthony J.; Pulham, Colin R. (1994). Sykes, A. G. (ed.). Advances in Inorganic Chemistry. Vol.41. Academic Press. pp.198–199. ISBN 978-0-12-023641-1. Originally, de Boisbaudran determined the density of gallium as 4.7g/cm 3, the only property that failed to match Mendeleev's predictions; Mendeleev then wrote to him and suggested that he should remeasure the density, and de Boisbaudran then obtained the correct value of 5.9g/cm 3, that Mendeleev had predicted exactly. [44] Advances in trace element testing have allowed scientists to discover traces of dissolved gallium in the Atlantic and Pacific Oceans [96] In recent years, dissolved gallium concentrations have presented in the Beaufort Sea. [96] [97] These reports reflect the possible profiles of the Pacific and Atlantic Ocean waters. [97] For the Pacific Oceans, typical dissolved gallium concentrations are between 4–6pmol/kg at depths <~150 m. In comparison, for Atlantic waters 25–28pmol/kg at depths >~350 m. [97]