Beryllium iodide

Beryllium iodide

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IUPACName =
SystematicName = Beryllium iodide
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Section1 = Chembox Identifiers
Abbreviations =
CASNo = 7787-53-3
EINECS =
EINECSCASNO =
PubChem =
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InChI =
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ChEBI =
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Section2 = Chembox Properties
Formula = BeI2
MolarMass = 262.821 g/mol
Appearance = colorless needle-like crystals
Density = 4.325 g/cm³
MeltingPt = 510°C
Melting_notes =
BoilingPt = 590°CCitation
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 =63
isbn =0849386713
doi =
oclc =
url= http://books.google.com/books?id=0fT4wfhF1AsC&printsec=frontcover&dq=%22beryllium+iodide%22+properties&as_brr=3#PPA63,M1
accessdate = 2007-12-10]
Boiling_notes =
Solubility = Reacts violently with water
SolubleOther = Slightly soluble in CS2
Soluble in ethanolCitation
last = Parsons
first =Charles Lathrop
author-link =
last2 =
first2 =
author2-link =
publication-date =
date =
year =1909
title =The Chemistry and Literature of Beryllium
edition =
volume =
series =
publication-place =
place =Easton, Pa.
publisher =Chemical Publishing
id =
pages =22–23
isbn =
doi =
oclc =
url =http://books.google.com/books?id=7MxAAAAAIAAJ&pg=PA21&dq=%22beryllium+iodide%22&as_brr=3#PPA22,
accessdate = 2007-12-10]
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Section3 = Chembox Structure
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Section4 = Chembox Thermochemistry
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Section5 = Chembox Pharmacology
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Section6 = Chembox Explosive
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Section7 = Chembox Hazards
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MainHazards = "see Berylliosis"
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Section8 = Chembox Related
OtherAnions = Beryllium fluoride
Beryllium chloride
Beryllium bromide
OtherCations = Magnesium iodide
Calcium iodide
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Beryllium iodide is the chemical compound with the formula BeI2. It is very hygroscopic and reacts violently with water, forming hydroiodic acid.

Reactions

Beryllium iodide can be prepared by reacting beryllium metal with elemental iodine at temperatures of 500°C to 700°C::Be + I2 → BeI2

Beryllium iodide is also formed when beryllium carbide with hydrogen iodide in the gas phase::Be2C + 4 HI → 2 BeI2 + CH4

The iodine in beryllium iodide is easily replaced with the other halogens; it reacts with fluorine giving beryllium fluoride and fluorides of iodine, with chlorine giving beryllium fluoride, and with bromine giving beryllium bromide. The solid and vapor are both flammable in air.

References


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