Refractive index database

nk database   |   n2 database   |   about




Optical constants of RbBr (Rubidium bromide)
Li 1976: n 0.21–50 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]



297 K (24 °C).


H. H. Li. Refractive index of alkali halides and its wavelength and temperature derivatives. J. Phys. Chem. Ref. Data 5, 329-528 (1976) and references therein.
* Sellmeier formula is derived by critical analysis of experimental data from several sources.


[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]


Rubidium bromide, RbBr

Rubidium bromide (RbBr) is an ionic compound consisting of rubidium cations (Rb+) and bromide anions (Br-). This white, crystalline solid is highly soluble in water, producing a solution that is neutral in pH. Like other alkali metal bromides, rubidium bromide is typically used in the laboratory setting rather than for commercial applications. Due to its optical properties, it may be of interest in certain optical and laser applications. In general, RbBr shares many of the properties common to other alkali metal bromides, such as high solubility in water, hygroscopic nature, and good conductivity when dissolved or melted. Handling should be done with care as it reacts with moisture and can be corrosive.