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HomeProduct name listRUBIDIUM BROMIDE

RUBIDIUM BROMIDE

Synonym(s):Rubidium monobromide

  • CAS NO.:7789-39-1
  • Empirical Formula: BrRb
  • Molecular Weight: 165.37
  • MDL number: MFCD00011186
  • EINECS: 232-162-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-05-30 16:33:02
RUBIDIUM BROMIDE Structural

What is RUBIDIUM BROMIDE?

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

The Uses of RUBIDIUM BROMIDE

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.

Properties of RUBIDIUM BROMIDE

Melting point: 693 °C
Boiling point: 1340 °C
Density  3.35 g/mL at 25 °C (lit.)
refractive index  1.5530
Flash point: 1340°C
form  crystal
Specific Gravity 3.35
color  white
Water Solubility  Soluble in water
Sensitive  Hygroscopic
Merck  14,8283
Dielectric constant 4.8499999999999996
Stability: Stable. Incompatible with strong acids.
CAS DataBase Reference 7789-39-1(CAS DataBase Reference)
EPA Substance Registry System Rubidium bromide (RbBr) (7789-39-1)

Safety information for RUBIDIUM BROMIDE

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.

Computed Descriptors for RUBIDIUM BROMIDE

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