What is the Name of the Ionic Compound Rbcl

What is the Name of the Ionic Compound Rbcl.

Rubidium chloride
Rubidium chloride's CsCl structure
Other names

rubidium(I) chloride


CAS Number

  • 7791-eleven-9

3D model (JSmol)

  • Interactive epitome
  • CHEBI:78672
    Due north
  • 56434
ECHA InfoCard 100.029.310
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  • 62683
RTECS number
  • VL8575000
  • N3SHC5273S
    Due north

CompTox Dashboard

  • DTXSID5064881
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  • InChI=1S/ClH.Rb/h1H;/q;+1/p-1check


  • InChI=1/ClH.Rb/h1H;/q;+i/p-one


  • [Rb+].[Cl-]

Chemic formula

Molar mass 120.921 thousand/mol
Advent white crystals

Density ii.80 g/cm3
(25 °C)

2.088 grand/mL (750 °C)
Melting point 718 °C (i,324 °F; 991 K)
Boiling point 1,390 °C (ii,530 °F; 1,660 K)

Solubility in water

77 k/100mL (0 °C)

91 k/100 mL (20 °C)

130 1000/100 mL (100 °C)
Solubility in methanol one.41 g/100 mL

Magnetic susceptibility (χ)


Refractive alphabetize (n


Heat capacity

52.4 J K−1 mol−1

Std molar



95.nine J K−one mol−1

Std enthalpy of


−435.14 kJ/mol
NFPA 704
(fire diamond)


Flash point Non-flammable
Lethal dose
or concentration (LD, LC):

(median dose)

4440 mg/kg (rat)
Condom data sheet (SDS) Fisher Scientific
Related compounds

Other anions

Rubidium fluoride
Rubidium bromide
Rubidium iodide
Rubidium astatide

Other cations

Lithium chloride
Sodium chloride
Potassium chloride
Caesium chloride
Francium chloride

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Nverify (what is

Infobox references

Chemical compound

Rubidium chloride
is the chemic chemical compound with the formula RbCl. This alkali metallic halide salt is composed of rubidium and chlorine, and finds various uses ranging from electrochemistry to molecular biology.

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In its gas phase, RbCl is diatomic with a bond length estimated at 2.7868 Å.[ane]
This distance increases to three.285 Å for cubic RbCl, reflecting the higher coordination number of the ions in the solid stage.[2]

Depending on conditions, solid RbCl exists in ane of three arrangements or polymorphs as adamant with holographic imaging:[three]

Sodium chloride (octahedral six:six)


The sodium chloride (NaCl) polymorph is most common. A cubic close-packed organization of chloride anions with rubidium cations filling the octahedral holes describes this polymorph.[iv]
Both ions are six-coordinate in this organization. This polymorph’southward lattice free energy is just iii.two kJ/mol less than the following structure’due south.[5]

Caesium chloride (cubic 8:viii)


At high temperature and pressure, RbCl adopts the caesium chloride (CsCl) structure (NaCl and KCl undergo the same structural change at high pressures). Here, the chloride ions class a simple cubic arrangement with chloride anions occupying the vertices of a cube surrounding a key Rb+. This is RbCl’s densest packing motif.[two]
Because a cube has eight vertices, both ions’ coordination numbers equal eight. This is RbCl’s highest possible coordination number. Therefore, according to the radius ratio rule, cations in this polymorph will achieve their largest credible radius considering the anion-cation distances are greatest.[4]

Sphalerite (tetrahedral 4:4)


The sphalerite polymorph of rubidium chloride has not been observed experimentally. This is consistent with the theory; the lattice energy is predicted to exist nearly twoscore.0 kJ/mol smaller in magnitude than those of the preceding structures.[5]

Synthesis and reaction


The well-nigh mutual preparation of pure rubidium chloride involves the reaction of its hydroxide with hydrochloric acrid, followed by recrystallization:[half-dozen]

RbOH + HCl → RbCl + H2O
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Because RbCl is hygroscopic, it must be protected from atmospheric wet, east.g. using a desiccator. RbCl is primarily used in laboratories. Therefore, numerous suppliers (see beneath) produce information technology in smaller quantities as needed. It is offered in a multifariousness of forms for chemic and biomedical inquiry.

Rubidium chloride reacts with sulfuric acid to give rubidium hydrogen sulfate.



Every 18 mg of rubidium chloride is equivalent to approximately i banana equivalent dose due to the large fraction (27.8%) of naturally-occurring radioactive isotope rubidium-87.



  • Rubidium chloride is used as a gasoline additive to meliorate its octane number.[7]
  • Rubidium chloride has been shown to change coupling between circadian oscillators via reduced photaic input to the suprachiasmatic nuclei. The result is a more than equalized circadian rhythm, even for stressed organisms.[viii]
  • Rubidium chloride is an excellent non-invasive biomarker. The compound dissolves well in water and tin can readily be taken upward by organisms. In one case cleaved in the trunk, Rb+
    replaces G+
    in tissues because they are from the same chemical group.[9]
    An example of this is the use of a radioactive isotope to evaluate perfusion of heart muscle.
  • Rubidium chloride transformation for competent cells is arguably the compound’s nearly abundant use. Cells treated with a hypotonic solution containing RbCl expand. As a result, the expulsion of membrane proteins allows negatively charged Dna to bind.[10]
  • Rubidium chloride has shown antidepressant furnishings in experimental homo studies, in doses ranging from 180 to 720 mg. Information technology purportedly works by elevating dopamine and norepinephrine levels, resulting in a stimulating effect, which would exist useful for anergic and apathetic depression.[eleven]
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  1. ^

    Lide, D. R.; Cahill, P.; Gold, L. P. (1963). “Microwave Spectrum of Lithium Chloride”.
    Journal of Chemic Physics.
    (ane): 156–159. doi:10.1063/one.1724853.

  2. ^



    Wells, A. F. (1984).
    Structural Inorganic Chemical science. Oxford University Press. pp. 410, 444.

  3. ^

    Kopecky, M.; Fábry, J.; Kub, J.; Busetto, E.; Lausi, A. (2005). “Ten-ray diffuse scattering holography of a centrosymmetric sample”.
    Applied Physics Letters.
    (23): 231914. Bibcode:2005ApPhL..87w1914K. doi:10.1063/ane.2140084.

  4. ^



    Shriver, D. F.; Atkins, P. W.; Cooper, H. L. (1990). “Chapter 2”.
    Inorganic Chemical science. Freeman.

  5. ^



    Pyper, Due north. C.; Kirkland, A. I.; Harding, J. H. (2006). “Cohesion and polymorphism in solid rubidium chloride”.
    Journal of Physics: Condensed Matter.
    (2): 683–702. Bibcode:2006JPCM…xviii..683P. doi:ten.1088/0953-8984/18/2/023.

  6. ^

    Winter, M. (2006). “Compounds of Rubidium”.

  7. ^

    Budavari, Due south. (1996).
    The Merck index: an encyclopedia of chemicals, drugs, and biologicals. Rahway, NJ, U.S.A.: Merck. ISBN0-911910-12-three.

  8. ^

    Hallonquist, J.; Lindegger, M.; Mrosovsky, N. (1994). “Rubidium chloride fuses split circadian activity rhythms in hamsters housed in bright constant light”.
    Chronobiology International.
    (two): 65–71. doi:x.3109/07420529409055892. PMID 8033243.

  9. ^

    Hougardy, Eastward.; Pernet, P.; Warnau, Grand.; Delisle, J.; Grégoire, J.-C. (2003). “Marking bark protrude parasitoids within the host plant with rubidium for dispersal studies”.
    Entomologia Experimentalis et Applicata.
    (2): 107. doi:ten.1046/j.1570-7458.2003.00073.x. S2CID 85691705.

  10. ^

    “RbCl Transformation Protocol”. New England Biolabs. 2006. Archived from the original on 2006-03-19.

  11. ^

    Gian F. Placidi; Liliana Dell’Osso; Giuseppe Nistico; Hagop S. Akiskal (half dozen December 2012).
    Recurrent Mood Disorders: New Perspectives in Therapy. Springer Science & Business Media. pp. 293–. ISBN978-3-642-76646-6.

What is the Name of the Ionic Compound Rbcl

Source: https://en.wikipedia.org/wiki/Rubidium_chloride

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