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Sodium amide, commonly called sodamide (systematic name sodium azanide), is the inorganic compound with the formula NaNH 2. It is a salt composed of the sodium cation and the azanide anion. This solid, which is dangerously reactive toward water, is white, but commercial samples are typically gray due to the presence of small quantities of ...
It is a sodium salt of acetylene, consisting of sodium cations Na + and hydrogen acetylide anions − C≡CH. It is a derived from acetylene by deprotonation using a sodium base, typically sodium amide. [2] HC≡CH + NaNH 2 → NaC≡CH + NH 3
Sodium amide (also known as sodamide) is synthesized from sodium metal and ammonia with ferric nitrate catalyst. [3] [4] The sodium compound is white, but the presence of metallic iron turns the commercial material gray. 2 Na + 2 NH 3 → 2 NaNH 2 + H 2. Lithium diisopropylamide is a popular non-nucleophilic base used in organic synthesis.
In the first step, ammonia is converted to sodium amide by metallic sodium: 2 Na + 2 NH 3 → 2 NaNH 2 + H 2. It is a redox reaction in which metallic sodium gives an electron to a proton of ammonia which is reduced in hydrogen gas. Sodium easily dissolves in liquid ammonia to produce solvated electrons responsible for the blue color of the ...
The alkali metal derivatives are best known, although usually referred to as alkali metal amides. Examples include lithium amide, sodium amide, and potassium amide.These salt-like solids are produced by treating liquid ammonia with strong bases or directly with the alkali metals (blue liquid ammonia solutions due to the solvated electron): [1] [2] [4]
Low sodium intake level was a mean of <115 mmol (2645 mg), usual sodium intake was 115-215 mmol (2645–4945 mg), and a high sodium intake was >215 mmol (4945 mg), concluding: "Both low sodium intakes and high sodium intakes are associated with increased mortality, consistent with a U-shaped association between sodium intake and health outcomes".
NIOSH (US health exposure limits): PEL (Permissible) TWA 0.5 ppm (2 mg/m 3) [1] REL (Recommended) ... It is produced by the reaction of sodium amide with pyridine, ...
Sodium amide is a handy reagent for the Chichibabin reaction but handling it can be dangerous and caution is advised. [4] σ-adduct (Meisenheimer adduct) formation; Evidence indicates that before addition of the amino group, the ring nitrogen atom is sorbed onto the surface of sodium amide and the sodium cation forms a coordination complex. [3]