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Encyclopedia > Barium iodide
Barium iodide
General
Systematic name Barium(II) iodide
Other names Barium iodide, anhydrous
Molecular formula BaI2
SMILES  ?
Molar mass 391.136 g/mol
Appearance White solid, hygroscopic
CAS number 13718-50-8
Properties
Density and phase 5.15 g/cm3
Solubility in water  ? g/100 ml (? °C)
Melting point 711 °C
Boiling point 2027 °C
Magnetic Susceptibility -0.0001244 cm3/mol
Acidity (pKa)  ?
Basicity (pKb)  ?
Chiral rotation [α]D  ?°
Viscosity  ? cP at ? °C
Heat of fusion 67.8 J/g
Structure
Molecular shape  ?
Coordination
geometry
 ?
Crystal structure orthorhombic
Dipole moment  ? D
Hazards
MSDS External MSDS
Main hazards toxic
NFPA 704
Flash point  ? °C
R/S statement R: ?
S: ?
RTECS number  ?
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other anions  ?
Other cations  ?
Related ?  ?
Related compounds CaCl2; CaI2; BaCl2
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Barium iodide occurs in two forms, one anhydrous and the other hydrated. Both are white solids. When heated, hydrated barium iodide dehydrates and the anhydrous salt can be obtained. IUPAC nomenclature is a system of naming chemical compounds and of describing the science of chemistry in general. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... The simplified molecular input line entry specification or SMILES is a specification for unambiguously describing the structure of chemical molecules using short ASCII strings. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... A hygroscopic substance is a substance that absorbs water readily from its surroundings. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... In physics, Density is defined as mass m per unit volume V. Mathematically, it is expressed as where, in SI units: ρ (rho) is the density of the substance, measured in kg m-3 m is the mass of the substance, measured in kg v is the volume of the substance... In the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. ... Solubility refers to the ability for a given substance, the solute, to dissolve in a solvent. ... This article describes water from a scientific and technical perspective. ... The melting point of a crystalline solid is the temperature at which it changes state from solid to liquid. ... The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid at a given pressure. ... In electrical engineering, the magnetic susceptibility is the degree of magnetization of a material in response to an applied magnetic field. ... In chemistry and biochemistry, the acid dissociation constant, the acidity constant, or the acid-ionization constant (Ka) is a specific type of equilibrium constant that indicates the extent of dissociation of hydronium ions from an acid. ... In chemistry and biochemistry, the acid dissociation constant, the acidity constant, or the acid-ionization constant (Ka) is a specific type of equilibrium constant that indicates the extent of dissociation of hydronium ions from an acid. ... The specific rotation of a chemical compound [α] is defined as the observed angle of optical rotation α when plane-polarized light is passed through a sample with a path length of 1 decimeter and a sample concentration of 1 gram per 100 millilitre. ... The related Category:Units of viscosity has been nominated for deletion, merging, or renaming. ... The poise (P; IPA: ) is the unit of dynamic viscosity in the centimetre gram second system of units. ... Heat of fusion is the amount of heat energy which must be absorbed or lost for 1 gram of a substance to change states from a solid to a liquid or vice versa. ... four sp³ orbitals three sp² orbitals In chemistry, hybridisation or hybridization (see also spelling differences) is the concept of mixing atomic orbitals to form new hybrid orbitals suitable for the qualitative description of atomic bonding properties. ... The coordination geometry of an atom is the geometrical pattern formed by its neighbors in a molecule or a crystal. ... Enargite crystals In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... In crystallography, the orthorhombic crystal system is one of the 7 lattice point groups. ... The Earths magnetic field, which is approximately a dipole. ... The debye (symbol: D) is a non-SI and non-CGS unit of electrical dipole moment. ... An example MSDS in a US format provides guidance for handling a hazardous substance and information on its composition and properties. ... The examples and perspective in this article or section may not represent a worldwide view. ... NFPA 704 is a standard maintained by the U.S. National Fire Protection Association. ... The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture with air. ... Risk and Safety Statements, also known as R/S statements, R/S numbers, R/S phrases, and R/S sentences, is a system of hazard codes and phrases for labeling dangerous chemicals and compounds. ... R-phrases are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations. ... S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. ... RTECS, also known as Registry of Toxic Effects of Chemical Substances, is a database of toxicity information compiled from the open scientific literature that is available for charge. ... The refractive index (or index of refraction) of a material is the factor by which the phase velocity of electromagnetic radiation is slowed in that material, relative to its velocity in a vacuum. ... The dielectric constant εr (represented as or K in some cases) is defined as the ratio: where εs is the static permittivity of the material in question, and ε0 is the vacuum permittivity. ... Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... IR spectrum of a thin film of liquid ethanol. ... Nuclear Magnetic Resonance Spectroscopy most commonly known as NMR Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Mass spectrometry (also known as mass spectroscopy (deprecated)[1] or in common speech mass-spec) is an analytical technique used to measure the mass-to-charge ratio of ions. ... Multivalent redirects here. ... Multivalent redirects here. ... A question mark is a punctuation mark. ... In chemistry, the standard state of a material is its state at 1 bar (100 kilopascals) and 25 degrees Celsius (298. ...


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Barium iodide
Image:Barium iodide.jpg
General
Systematic name Barium(II) iodide dihydrate
Other names Hydrated barium iodide
Molecular formula BaI2.2H2O
SMILES  ?
Molar mass 427.167 g/mol
Appearance colorless crystals
CAS number 7787-33-9
Properties
Density and phase 5.00 g/cm3
Solubility in water  ? g/100 ml (? °C)
Melting point 740 °C , decomposes
Boiling point NA
Acidity (pKa)  ?
Basicity (pKb)  ?
Chiral rotation [α]D  ?°
Viscosity  ? cP at ? °C
Structure
Molecular shape  ?
Coordination
geometry
 ?
Crystal structure  ?
Dipole moment  ? D
Hazards
MSDS External MSDS
Main hazards toxic
NFPA 704
Flash point  ? °C
R/S statement R: ?
S: ?
RTECS number  ?
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other anions  ?
Other cations  ?
Related ?  ?
Related compounds  ?
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

  Results from FactBites:
 
Barium chloride - Wikipedia, the free encyclopedia (275 words)
Since barium chloride is soluble in water, it can react with sulfate ion to produce a thick white precipitate of barium sulfate.
Barium chloride behaves as a simple salt, and it is completely neutral in solution.
Barium chloride may be prepared from barium hydroxide or barium carbonate (found naturally as witherite) reacting with hydrochloric acid.
Patent 4866132: Novel radiopaque barium polymer complexes, compositions of matter and articles prepared therefrom (4895 words)
As previously disclosed, the optically lucent barium salt radiopaque materials of the present invention are homogeneously distributed and chelated with the polymer at the molecular level, and therefore, the complexed barium is virtually nonleachable from the resin.
In the preparation of barium bromide glyme 22 complexes, the ethylene oxide:barium ratio is the ratio of ethylene oxide units (22 per glyme monomer) to barium bromide units.
or a mole ratio of 1 mole barium bromide monohydrate:1 mole 18 crown 6:9.35 moles of methyl methacrylate.
  More results at FactBites »

 
 

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