beryllium bromide

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| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 459960826

| ImageFile = Beryllium bromide.svg

| ImageSize = 250px

| ImageFile1 = EntryWithCollCode92585.png

| ImageSize1 = 250px

| ImageFile2 = EntryWithCollCode92587.png

| ImageSize2 = 250px

| IUPACName = Beryllium bromide

| SystematicName =

| OtherNames =

|Section1={{Chembox Identifiers

| Abbreviations =

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 74208

| InChIKey = PBKYCFJFZMEFRS-NUQVWONBAJ

| CASNo_Ref = {{cascite|correct|ECHA}}

| CASNo = 7787-46-4

| EINECS = 232-115-9

| 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 =

| UNII = T00751H2J8

| 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 =

{{Citation

| last1 = Perry

| first1 =Dale L.

| last2 =Phillips

| first2 =Sidney L.

| year =1995

| title =Handbook of Inorganic Compounds

| publisher =CRC Press

| pages =61–62

| isbn =0-8493-8671-3

| url= https://books.google.com/books?id=0fT4wfhF1AsC&q=%22beryllium+bromide%22+properties&pg=PA61

| access-date = 2007-12-10

}}

| Solubility = Highly

| 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

}}

|Section7={{Chembox Hazards

| MainHazards = see Berylliosis

| NFPA-H = 4

| NFPA-F = 0

| NFPA-R = 0

| GHSPictograms = {{GHS06}}{{GHS08}}{{GHS09}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|350i|330|301|372|319|335|315|317|411}}

| PPhrases = {{P-phrases|260|301+310|304+340|305+351+338|320|330|405|501}}

| FlashPt =

| AutoignitionPt =

| ExploLimits =

| LD50 =

| REL = Ca C 0.0005 mg/m³ (as Be){{PGCH|0054}}

| PEL = TWA 0.002 mg/m³
C 0.005 mg/m³ (30 minutes), with a maximum peak of 0.025 mg/m³ (as Be)

| IDLH = Ca [4 mg/m³ (as Be)]}}

|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 {{chem2|Be(2+)}} cation, which is relevant to BeBr₂, is characterized by the highest known charge density (Z/r = 6.45), making it one of the hardest cations and a very strong Lewis acid.{{Citation |last=Buchner |first=M. R. |title=Beryllium Chemistry |date=2017-01-01 |url=https://www.sciencedirect.com/science/article/pii/B9780124095472110248 |work=Reference Module in Chemistry, Molecular Sciences and Chemical Engineering |access-date=2022-10-27 |publisher=Elsevier |language=en |isbn=978-0-12-409547-2}}