LITHIUM AMIDE LiNH2 Properties of lithium amide: White, melts without decomposition, decomposes on further heating. LITHIUM AMIDE LiNH2. Completely hydrolysed by water. Lithium bis(trimethylsilyl)amide is a lithiated organosilicon compound with the formula LiN(SiMe 3) 2. Completely hydrolysed by water. Lithium amide (LiNH 2) is a promising material for reversible hydrogen storage, yet the atomistic mechanisms behind the decomposition and dehydrogenation processes of LiNH 2 are unknown. The decompositions of lithium amide (LiNH2) and lithium imide (Li2NH) are important steps for hydrogen storage in Li3N. lithium imide by reaction with the lithium amide. Lithium amide reacts vigorously with water to generate gaseous NH3. At 568 K the lithium hydride begins to decompose and when hydrogen desorbs, lithium will readily desorb – since 568 K is in the middle of the metallic lithium peak in the TPDs – rather than form, e.g. Company Identification: Acros Organics N.V. One Reagent Lane Fair Lawn, NJ 07410 For information in North America, call: 800-ACROS-01 For emergencies in the US, call CHEMTREC: 800-424-9300 Benchmarking lithium amide versus amine bonding by charge density and energy decomposition analysis arguments† Felix Engelhardt , a Christian Maaß , a Diego M. Andrada ,* b Regine Herbst-Irmer a and Dietmar Stalke * a In this paper, we test the ammonia decomposition activity of lithium amide, an imide-forming metal amide.
Decomposition Kinetics of Lithium Amide and Its Implications for Hydrogen Storage - Volume 837 - Frederick E. Pinkerton Properties of lithium amide: White, melts without decomposition, decomposes on further heating. However, despite having many applications, their use is handicapped by the requirement of low temperatures, in order to control their reactivity, as well as the need for dry organic solvents and protective inert atmosphere protocols to prevent their fast decomposition. Obtaining lithium amide: 2 Li + 2 NH3 = 2 LiNH2 + H2 (220° C) LiH + NH3 = LiNH2 + H2 (350° C). metric ammonia decomposition indicated in eqn (2). MSDS Name: Lithium amide, 95% Catalog Numbers: AC199860000, AC199860050, AC199861000, AC199865000 Synonyms: Lithamide; Lithium amide, powered. It has been observed that the activation energy for LiNH 2 decomposition strongly varies with ball milling, [2–4]
LiH + NH3 (liquid) = LiNH2 ↓ + H2 ↑ (- 40° C). Reacts with acids. Li imide (amide). The Particle-Size Dependence of the Activation Energy for Decomposition of Lithium Amide Reactions with lithium amide: Herein, the decompositions of LiNH2 and Li2NH with and without anion promoter were investigated by using temperature-programmed decomposition (TPD) and X-ray diffraction (XRD) techniques.
Lithium amides constitute one of the most commonly used classes of reagents in synthetic chemistry. HUMAN EXPOSURE AND TOXICITY: Lithium amide is a powerful irritant to skin, eyes, and mucous membrane. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of ammonia gas will be created in 0.23 minutes. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of ammonia gas will be created in 0.23 minutes. Lithium amide reacts vigorously with water to generate gaseous NH3. Our results support David et al.’s proposal that the Li amide/imide is a bulk reaction, and that there is a continuous transformation between LiNH 2 and Li 2NH via nonstoichiometric intermediates.16 It is, however, not the formation and migration of lithium-related defects that is the ANIMAL STUDIES: The most prominent symptoms of acute lithium poisoning in animals when given lithium either by mouth or iv are anorexia, nausea, vomiting, diarrhea and salivation with loss of weight, dehydration and fall of body temperature.