Beryllium hydroxide

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| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 459976597

| ImageFile1 = Be(OH)2.png

| IUPACName = Beryllium hydroxide

| OtherNames = {{ubl|Beryllic acid|Hydrated beryllia}}

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 13327-32-7

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 2X0LRF1T6Q

| PubChem = 25879

| ChemSpiderID = 24110

| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}

| EINECS = 236-368-6

| MeSHName = Beryllium+hydroxide

| ChEBI_Ref = {{ebicite|correct|EBI}}

| ChEBI = 35102

| RTECS = DS3150000

| Gmelin = 1024

| SMILES = O[Be]O

| StdInChI = 1S/Be.2H2O/h;2*1H2/q+2;;/p-2

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| InChI = 1/Be.2H2O/h;2*1H2/q+2;;/p-2

| StdInChIKey = WPJWIROQQFWMMK-UHFFFAOYSA-L

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| InChIKey = WPJWIROQQFWMMK-NUQVWONBAB

}}

|Section2={{Chembox Properties

| H=2 | Be=1 | O=2

| Appearance = Vivid white, opaque crystals

| Density = 1.92 g cm⁻³Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, {{ISBN|0-07-049439-8}}

| MeltingPtC =

| MeltingPt_notes = (decomposes)

| pKa = 3.7{{cite book |title=Handbook of Chemistry and Physics |date=1951 |publisher=Chemical Rubber Publishing Company |location=Cleveland, Ohio |pages=1636–1637}}

| Solubility = 0.0000023965 g/L

| SolubilityProduct = 6.92{{e|−22}}{{cite book |author1=John Rumble |title=CRC Handbook of Chemistry and Physics |date=June 18, 2018 |publisher=CRC Press |isbn=978-1138561632 |pages=4–47|edition=99 |language=English}}

}}

|Section3={{Chembox Structure

| MolShape = Linear

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|Section4={{Chembox Thermochemistry

| DeltaHf = −904 kJ mol⁻¹{{cite book |author= Zumdahl, Steven S.|title= Chemical Principles 6th Ed. |publisher= Houghton Mifflin Company |year= 2009 |isbn= 978-0-618-94690-7}}

| DeltaGf = −818 kJ/mol

| Entropy = 47 J·mol⁻¹·K⁻¹

| HeatCapacity = 1.443 J K⁻¹

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|Section5={{Chembox Hazards

| MainHazards = Carcinogenic

| NFPA-H = 4

| NFPA-F = 0

| NFPA-R = 0

| GHSPictograms = {{GHS06}}{{GHS08}}{{GHS09}}{{cite web |title=Beryllium Hydroxide |url=https://www.americanelements.com/beryllium-hydroxide-13327-32-7 |website=American Elements |access-date=5 July 2023}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|}}

| PPhrases = {{P-phrases|}}

| LD50 = 4 mg kg⁻¹ (intravenous, rat)

| 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)]

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|Section6={{Chembox Related

| OtherCompounds = Aluminium oxide

Magnesium hydroxide

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Beryllium hydroxide, Be(OH)₂, is an amphoteric hydroxide, dissolving in both acids and alkalis. Industrially, it is produced as a by-product in the extraction of beryllium metal from the ores beryl and bertrandite.Jessica Elzea Kogel, Nikhil C. Trivedi, James M. Barker and Stanley T. Krukowski, 2006, Industrial Minerals & Rocks: Commodities, Markets, and Uses, 7th edition, SME, {{ISBN|0-87335-233-5}} The natural pure beryllium hydroxide is rare (in form of the mineral behoite, orthorhombic) or very rare (clinobehoite, monoclinic).Mindat, http://www.mindat.org/min-603.htmlMindat, http://www.mindat.org/min-1066.html When alkali is added to beryllium salt solutions the α-form (a gel) is formed. If this left to stand or boiled, the rhombic β-form precipitates.Mary Eagleson, 1994, Concise encyclopedia chemistry, Walter de Gruyter, {{ISBN|3-11-011451-8}} This has the same structure as zinc hydroxide, Zn(OH)₂, with tetrahedral beryllium centers.{{Greenwood&Earnshaw2nd}}