ChemicalBook--->CAS DataBase List--->7789-39-1

7789-39-1

7789-39-1 Structure

7789-39-1 Structure
IdentificationMore
[Name]

RUBIDIUM BROMIDE
[CAS]

7789-39-1
[Synonyms]

RUBIDIUM BROMIDE
RbBr
Rubidium bromide (RbBr)
rubidiumbromide(rbbr)
RUBIDIUM BROMIDE, 99.7%
RUBIDIUM BROMIDE (99%-RB)
RUBIDIUM BROMIDE, 99.8% (METALS BASIS)
RUBIDIUM BROMIDE 99+%
Rubidium monobromide
RUBIDIUM BROMIDE, 99.9%
Rubidiumbromide(99.9%-Rb)
RUBIDIUM BROMIDE, 99%, PURE
Rubidium bromide, pure
[EINECS(EC#)]

232-162-5
[Molecular Formula]

BrRb
[MDL Number]

MFCD00011186
[Molecular Weight]

165.37
[MOL File]

7789-39-1.mol
Chemical PropertiesBack Directory
[Appearance]

white crystalline powder
[Melting point ]

693 °C
[Boiling point ]

1340 °C
[density ]

3.35 g/mL at 25 °C(lit.)
[refractive index ]

1.5530
[Fp ]

1340°C
[form ]

crystal
[color ]

white
[Specific Gravity]

3.35
[Stability:]

Stable. Incompatible with strong acids.
[Water Solubility ]

Soluble in water
[Sensitive ]

Hygroscopic
[Merck ]

14,8283
[Dielectric constant]

4.8499999999999996
[CAS DataBase Reference]

7789-39-1(CAS DataBase Reference)
[EPA Substance Registry System]

Rubidium bromide (RbBr) (7789-39-1)
Safety DataBack Directory
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

3
[TSCA ]

Yes
[HS Code ]

2827590000
Hazard InformationBack Directory
[Description]

Rubidium bromide (RbBr) is a hygroscopic material, which is generally similar to the other rubidium halides.
Rubidium bromide is the bromide of rubidium. It has a NaCl crystal structure, with a lattice constant of 685 picometres.
There are several methods for synthesising rubidium bromide. One involves reacting rubidium hydroxide with hydrobromic acid:
RbOH + HBr → RbBr + H2O
Another method is to neutralize rubidium carbonate with hydrobromic acid:
Rb2CO3 + 2 HBr → 2 RbBr + H2O + CO2
Rubidium metal would react directly with bromine to form RbBr, but this is not a sensible production method, since rubidium metal is substantially more expensive than the carbonate or hydroxide; moreover, the reaction would be explosive.
[Chemical Properties]

white crystalline powder
[Uses]

Rubidium bromide is used in infrared optics.
[Purification Methods]

The bromide is a white crystalline powder which crystallises from H2O (solubility: 50% in cold and 67% in boiling H2O to give a neutral solution). It also crystallises from near-boiling water (0.5mL/g) by cooling to 0o.
Spectrum DetailBack Directory
[Spectrum Detail]

RUBIDIUM BROMIDE(7789-39-1)Raman
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

Rubidium bromide, 99.8% (metals basis)(7789-39-1)
[Sigma Aldrich]

7789-39-1(sigmaaldrich)
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