What does nascent hydrogen mean?
Definitions for nascent hydrogen
nascent hy·dro·gen
This dictionary definitions page includes all the possible meanings, example usage and translations of the word nascent hydrogen.
Wiktionary
nascent hydrogennoun
monatomic hydrogen that exists transiently after the reduction of a hydrogen ion; generated from zinc and hydrochloric acid; it is a strong reducing agent
Wikipedia
Nascent hydrogen
Nascent hydrogen is an outdated concept in organic chemistry that was once invoked to explain dissolving-metal reactions, such as the Clemmensen reduction and the Bouveault–Blanc reduction. Since organic compounds do not react with H2, a special state of hydrogen was postulated. It is now understood that dissolving-metal reactions occur at the metal surface, and the concept of nascent hydrogen has been discredited in organic chemistry. However, the formation of atomic hydrogen is largely invoked in inorganic chemistry and corrosion sciences to explain hydrogen embrittlement in metals exposed to electrolysis and anaerobic corrosion (e.g., dissolution of zinc in strong acids (HCl) and aluminium in strong bases (NaOH). The mechanism of hydrogen embrittlement was first proposed by Johnson (1875). The inability of hydrogen atoms to react with organic reagents in organic solvents does not exclude the transient formation of hydrogen atoms capable to immediately diffuse into the crystal lattice of common metals (steel, titanium) different from these of the platinoid group (Pt, Pd, Rh, Ru, Ni) which are well known to dissociate molecular dihydrogen (H2) into atomic hydrogen.
Wikidata
Nascent hydrogen
Nascent hydrogen is purported to consist of a chemically reactive form of hydrogen that is freshly generated, hence nascent. Molecular hydrogen, which is the normal form of this element, is unreactive toward organic compounds, so a special state of hydrogen was once invoked to explain certain kinds of hydrogenations. Mechanistic understanding of such reactions is now available, and the concept of nascent hydrogen is discounted, even ridiculed.
Numerology
Chaldean Numerology
The numerical value of nascent hydrogen in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of nascent hydrogen in Pythagorean Numerology is: 1
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"nascent hydrogen." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/nascent+hydrogen>.
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