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151:. He extracted and isolated a small amount of an apparently unknown substance from the mineral, which he announced as the discovery of element 43, naming the newly discovered element
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Yoshihara, H. K. (2004). "Discovery of a new element 'nipponium': re-evaluation of pioneering works of
Masataka Ogawa and his son Eijiro Ogawa".
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could not be reused for another element, element 113 was also discovered by a team of
Japanese scientists and is now named
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354:"Names and symbols of the elements with atomic numbers 113, 115, 117 and 118 (IUPAC Recommendations 2016)"
163:. However, no other researchers were able to replicate his discovery, and the announcement was forgotten.
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132:), which he named nipponium. In fact, he had discovered, but misidentified, element 75 (later called
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was a
Japanese chemist mainly known for the claimed discovery of element 43 (later known as
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178:, also after Japan. The name was chosen in respectful homage to Ogawa's work.
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155:. He published his results in 1909 and a notice was also published in the
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in London, where he worked on the analysis of the rare mineral
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Hisamatsu, Yoji; Egashira, Kazuhiro; Maeno, Yoshiteru (2022).
245:"Ogawa's nipponium and its re-assignment to rhenium"
19:"Nipponium" redirects here. Not to be confused with
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352:Öhrström, Lars; Reedijk, Jan (28 November 2016).
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318:"A discovery which served as a foothold"
290:Journal of the American Chemical Society
157:Journal of the American Chemical Society
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170:between 1919 and 1928. While the name
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285:"Recent Work in Inorganic Chemistry"
126:, 21 February 1865 – 11 July 1930)
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322:St. Petersburg: Through Centuries
433:Discoverers of chemical elements
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458:19th-century Japanese chemists
418:20th-century Japanese chemists
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166:Ogawa served as president of
448:20th-century Japanese people
443:19th-century Japanese people
16:Japanese chemist (1865–1930)
195:幻の元素「ニッポニウム」を発見 小川正孝|日本の世界一
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262:10.1007/s10698-021-09410-x
209:Spectrochimica Acta Part B
139:After graduating from the
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249:Foundations of Chemistry
341:Tohoku University page
161:Tokyo Chemical Society
373:10.1515/pac-2016-0501
283:Howe, J. S. (1909).
303:10.1021/ja01942a006
222:2004AcSpe..59.1305Y
143:, he studied under
141:University of Tokyo
438:Tohoku University
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65:(1930-07-11)
63:11 July 1930
428:1930 deaths
423:1865 births
268:16 November
72:Nationality
412:Categories
382:1887/47427
327:2016-03-11
182:References
149:thorianite
130:technetium
51:1865-02-21
316:Kaji, M.
255:: 15–57.
172:nipponium
153:nipponium
100:Chemistry
396:22 April
391:99429711
176:nihonium
21:Nihonium
453:Rhenium
218:Bibcode
134:rhenium
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97:Fields
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387:S2CID
357:(PDF)
117:小川 正孝
84:Japan
398:2017
270:2023
60:Died
45:Born
377:hdl
369:doi
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