Hidrur de liti: diferència entre les revisions
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{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 476998437
| Name = Hidrur de liti
| ImageFile = Lithium-hydride-3D-vdW.png
| ImageSize =
| ImageName = Model de rebliment d'espai d'hidrur de liti
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
{{Chembox/CASNo|7580-67-8}}▼
| ChemSpiderID = 56460
| InChI = 1/Li.H/q+1;-1
| InChIKey = SRTHRWZAMDZJOS-UHFFFAOYAZ
| SMILES = [H-].[Li+]
| StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChI = 1S/Li.H
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = SIAPCJWMELPYOE-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 62714
}}
|Section2={{Chembox
| Formula = LiH
| MolarMass = 7,95 g/mol
| Appearance = sòlid incolor a gris<ref name=crc/>
▲{{Chembox/RTECS|OJ6300000}}
| Density = 0,78 g/cm<sup>3</sup><ref name=crc/>
| Solubility = reacciona
| SolubleOther = lleugerament soluble en [[dimetilformamida]] <br> reacciona amb [[amoníac]], [[èter dietílic]], [[etanol]]
| MeltingPtC = 688,7
| Melting_ref = <ref name=crc>{{RubberBible86th|page=4.70}}</ref>
| BoilingPt = es descompon a 900–1000 °C<ref>{{cite book|author1=David Arthur Johnson|author2=Open University|title=Metals and chemical change|url=http://books.google.com/books?id=dzjxzsKjZGUC&pg=PA167|accessdate=1 November 2011|date=12 August 2002|publisher=Royal Society of Chemistry|isbn=978-0-85404-665-2|pages=167–}}</ref>
| RefractIndex = 1,9847<ref name="Smith">{{cite book|url=http://ntrs.nasa.gov/search.jsp?R=19720066808&hterms=lithium+hydride+fuel&qs=Ntx%3Dmode%2520matchallpartial%2520%26Ntk%3DAll%26N%3D0%26Ntt%3D%2522lithium%2520hydride%2522%2520fuel|author=Smith, R. L.; Miser, J. W. |publisher=NASA|title=Compilation of the properties of lithium hydride|date=1963}}</ref>
}}
|Section3={{Chembox Structure
| Structure = [[Sistema cristal·lí cúbic|fcc]] ([[estructura halita|tipus NaCl]])
| LattConst_a = 0,40834 nm<ref name="Smith" />
| Dipole = 6,0 D<ref name="Smith" />
}}
|Section4={{Chembox Thermochemistry
| DeltaHf = -90,65 kJ/mol
| DeltaHc =
| DeltaGf = -68,48 kJ/mol
| Entropy = 170,8 J/mol K
| HeatCapacity = 3,51 J/(g·K)
}}
|Section7={{Chembox Hazards
| ExternalMSDS = [http://www.inchem.org/documents/icsc/icsc/eics0813.htm ICSC 0813]
| EUIndex = No està en la llista
| NFPA-H = 3
| NFPA-F = 2
| NFPA-R = 2
| NFPA-O = W
| RPhrases =
| SPhrases =
| AutoignitionPtC = 200
| Autoignition_notes =
| LD50 = 77,5 mg/kg (oral, rata)<ref>http://chem.sis.nlm.nih.gov/chemidplus/rn/7580-67-8</ref>
| IDLH = 0.5 mg/m<sup>3</sup><ref name=PGCH>{{PGCH|0371}}</ref>
| LC50 = 22 mg/m<sup>3</sup> (rata, 4 h)<ref>{{IDLH|7580678|Lithium hydride}}</ref>
| PEL = TWA 0,025 mg/m<sup>3</sup><ref name=PGCH/>
| REL = TWA 0,025 mg/m<sup>3</sup><ref name=PGCH/>
}}
|Section8={{Chembox Related
| OtherCations = [[Hidrur de sodi]]<br/>[[Hidrur de potassi]]<br/>[[Hidrur de rubidi]]<br/>[[Hidrur de cesi]]
| OtherCpds = [[Borohidrur de liti]]<br/>[[Hidrur de liti i alumini]]]
}}
}}
L''''hidrur de liti''', LIH, és un compost inorgànic iònic, format per [[catió|cations]] [[liti]], Li<sup>+</sup> i [[anió|anions]] [[hidrur]], H<sup>–</sup>. Es presenta en forma de [[cristall]]s incolors o lleugerament grisos degut a impureses. La seva [[estructura cristal·lina]] és [[Cub|cúbica]] centrada en les cares, tipus [[clorur de sodi]].
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