Carbides lithium

Lithium Acetylide. Lithium acetyhde—ethylenediamine complex [50475-76-8], LiCM7H -112X01120112X112, is obtained as colodess-to-light-tan, free-flowing crystals from the reaction of /V-lithoethylenediamine and acetylene in an appropriate solvent (131). The complex decomposes slowly above 40°O to lithium carbide and ethylenediamine. Lithium acetyhde—ethylenediamine is very soluble in primary amines, ethylenediamine, and dimethyl sulfoxide. It is slightly soluble in ether, THF, and secondary and tertiary amines, and is insoluble in hydrocarbons. 

In accordance with these experimental results, Wang et al. employed density functional theory calculations to comprehensively examine the possible reduction pathways for EC molecules in super-molecular structures Li+—(EC) [n = 1—5) and found that, thermodynamically, both one- and two-electron reductive processes are possible.A complete array of the possible reduction products from EC was listed in their paper considering the various competitive pathways, and they concluded that both (CH2OCO2-Li)2 and (CH2CH20C02Li)2 are the leading species in SEI, while minority species such as lithium alkox-ide, lithium carbide, and the inorganic Li2C03 coexist. 

Lithium Carbide or Monolithlum Acetylide, LiC, wh crysts, d 1.65 at 18° was prepd by Mbissan on heating Li carbonate with g iTiuI 3 O f sugar-char coal in an elec furnace. LiaCOs + 6C -> 2LiCj + 3C0(Ref 2). It is a Dowerful reducing auenr and reacts with w... 

LijCj, wh crysts. Was first prepd by Guntz Ou heating Li to redness in a vac with carbon or in a current of CO or COa(Ref 2). Moissan (Ref 3) prepd it by heating lithium carbide-ammonia-acetylene. Tucker Moody (Ref 4) prepd it by heating Li carbonate and carbon in three types of elec furnaces to produce the reaction LijCO, + 4C - ... 

List of Abbreviations, Code Names, Symbols, etc Abbr 1 to Abbr 65 List of Abbreviations for Books, Periodicals, etc Abbr 66 to Abbr 76 Lithium Acetylides and Lithium Carbides A77... 

The condensed-phase samples will be reacted with water to determine the abundance of various lithium compounds. If lithium carbide is present, acetylene will be produced when the lithium carbide is reacted with water. Other compounds (LiH and Li) should release hydrogen when contacted with water, These gases will be measured with a gas chromatograph. 

Lithium carbide, Li2C2.—The carbide was first prepared by Moissan 8 by the reduction of lithium carbonate with charcoal in the electric furnace ... 

Lithium carbide is a white or grey crystalline substance, its density at 18° C. being 1-65. At bright red heat it is decomposed, and Tucker and Moody found that at 925° C. and a pressure of fifty pounds to the square inch it absorbs nitrogen freely with formation of cyanamide, dicyanamide, and cyanide. It is a powerful reducer, decomposing water energetically at ordinary temperatures with formation of acetylene ... 

In thorium carbide the Of ions are lying flat in parallel planes in such a way that two axes are equally lengthened with respect to the third. These structures are shown in Fig. 7-8. Lithium carbide, Li2Q, (Section 3-2) has a structure similar to that of CaQ. 

Incompatible with ethanol, ethanol + butadiene, ethanol + phosphorus, ethanol + methanol + HgO, formamide + pyridine + sulfur trioxide, formamide, halogens or interhalogens (e.g., chlorine), mercuric oxide, metals (e.g., aluminum, lithium, magnesium), metal carbides (e.g., lithium carbide, zirconium carbide), oxygen, pyridine, sodium hydride, sulfides. 

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