| 词条 | Beryllium bromide |
| 释义 |
| Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 459960826 | ImageFile = Beryllium bromide.svg | ImageSize = 250px | IUPACName = Beryllium bromide | SystematicName = | OtherNames = |Section1={{Chembox Identifiers | Abbreviations = | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 74208 | InChIKey = PBKYCFJFZMEFRS-NUQVWONBAJ | CASNo_Ref = {{cascite|changed|??}} | CASNo = 7787-46-4 | EINECS = | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/Be.2BrH/h;2*1H/q+2;;/p-2 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = PBKYCFJFZMEFRS-UHFFFAOYSA-L | PubChem = 82230 | SMILES = Br[Be-2](Br)([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1([Br+]1)[Br+][Be-2]1(Br)Br | InChI = 1/Be.2BrH/h;2*1H/q+2;;/p-2 | RTECS = | MeSHName = | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = | KEGG_Ref = {{keggcite|correct|kegg}} | KEGG = }} |Section2={{Chembox Properties | Formula = BeBr2 | MolarMass = 168.820 g/mol | Appearance = colorless white crystals | Density = 3.465 g/cm3 (20 °C) | MeltingPtC = 508 | MeltingPt_ref = sublimes at {{convert|473|C|F K}} | BoilingPtC = 520 | BoilingPt_ref = [1] | Solubility = Highly[1] | SolubleOther = soluble in ethanol, diethyl ether, pyridine insoluble in benzene | LogP = | VaporPressure = | HenryConstant = | AtmosphericOHRateConstant = | pKa = | pKb = }} |Section3={{Chembox Structure | CrystalStruct = Orthorhombic | Coordination = | MolShape = }} |Section4={{Chembox Thermochemistry | DeltaHf = -2.094 kJ/g | DeltaHc = | Entropy = 9.5395 J/K | HeatCapacity = 0.4111 J/g K |Section5={{Chembox Pharmacology | AdminRoutes = | Bioavail = | Metabolism = | HalfLife = | ProteinBound = | Excretion = | Legal_status = | Legal_US = | Legal_UK = | Legal_AU = | Legal_CA = | Pregnancy_category = | Pregnancy_AU = | Pregnancy_US = }} |Section6={{Chembox Explosive | ShockSens = | FrictionSens = | DetonationV = | REFactor = }} |Section7={{Chembox Hazards | EUClass = Carcinogen {{Hazchem T+}}{{Hazchem N}}{{Hazchem Xn}} | MainHazards = see Berylliosis | NFPA-H = 4 | NFPA-F = 0 | NFPA-R = 0 | RPhrases = | SPhrases = | RSPhrases = | FlashPt = | AutoignitionPt = | ExploLimits = | LD50 = | REL = Ca C 0.0005 mg/m3 (as Be)[2] | PEL = TWA 0.002 mg/m3 C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be)[2] | IDLH = Ca [4 mg/m3 (as Be)][2]}} |Section8={{Chembox Related | OtherAnions = Beryllium fluoride Beryllium chloride Beryllium iodide | OtherCations = Magnesium bromide Calcium bromide Strontium bromide Barium bromide Radium bromide | OtherFunction_label = | OtherCompounds = }} }}Beryllium bromide is the chemical compound with the formula BeBr2. It is very hygroscopic and dissolves well in water. The compound is a polymer with tetrahedral Be centres.[3] Preparation and reactionsIt can be prepared by reacting beryllium metal with elemental bromine at temperatures of 500 °C to 700 °C:[1] Be + Br2 → BeBr2 Beryllium bromide is also formed when treating beryllium oxide with hydrobromic acid: BeO + 2 HBr → BeBr2 + H2O It hydrolizes slowly in water: BeBr2 + 2 H2O → 2 HBr + Be(OH)2 SafetyBeryllium compounds are toxic if inhaled or ingested. References1. ^1 2 {{Citation| last = Perry| first =Dale L. | author-link =| last2 =Phillips| first2 =Sidney L. | author2-link =| publication-date =| date =| year =1995| title =Handbook of Inorganic Compounds| edition =| volume =| series =| publication-place =| place =| publisher =CRC Press| id =| pages =61–62| isbn =0-8493-8671-3| doi =| oclc =| url= https://books.google.com/books?id=0fT4wfhF1AsC&pg=PA61&dq=%22beryllium+bromide%22+properties| accessdate = 2007-12-10}} {{Beryllium compounds}}{{bromine compounds}}{{DEFAULTSORT:Beryllium Bromide}}2. ^1 2 {{PGCH|0054}} 3. ^Crystal modifications of Beryllium dihalides BeCl2, BeBr2, and BeI2 Troyanov, S. I. Zhurnal Neorganicheskoi Khimii (2000), 45(10), 1619-1624. 3 : Beryllium compounds|Bromides|Metal halides |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。