Chemical elements
  Molybdenum
    Isotopes
    Energy
    Production
    Application
    Physical Properties
      Spectrum
      Atomic Weight
    Chemical Properties
    Alloys
    Compounds
    PDB 1aa6-1qh8
    PDB 1r27-2jir
    PDB 2min-3unc
    PDB 3uni-4f6t

Spectrum of Molybdenum






The flame, are, and spark spectra of molybdenum, which exhibit close similarity to those of chromium, have been the subject of much careful investigation. The most persistent lines are in the more refrangible part of the spectrum. The spark spectra of ammonium molybdate in both acid and alkaline solution have been photographed, with identical results. The lines recorded were as follows:

Wave-length.Intensity and Persistency.Wave-length.Intensity and Persistency.Wave-length.Intensity and Persistency.
5570.710σ3176.42863.9
5533.310σ3175.22853.3
5506.710σ3173.02848.4
4760.43159.42816.3
4731.63145.82807.8
4707.43145.92785.1
4381.83141.92780.1
4244.93141.62775.5
3903.110ψ3139.02746.4
3864.210ψ3132.92717.4
3798.410ψ3132.72684.2
3688.410χ3111.02681.5
3614.43092.22673.4
3524.73087.72660.6
3402.93077.72653.4
3254.82963.92646.6
3253.92923.52644.4
3244.62912.02638.9
3240.82903.12602.9
3237.962894.52600.3
3223.12888.32595.5
3209.02879.1
3200.42871.6
3196.02866.8
3192.3


Exner and Haschek (loc. cit.) record the most intense lines of the arc and spark spectra of molybdenum as follows:


Arc Spectrum of Molybdenum

Arc Spectrum of Molybdenum given in following table:

Wave-length.Intensity.
3132.7030 u*
3170.4620 u*
3194.1120 u
3798.4150 u*
3864.3050 u
3903.1130 u*
4411.8620
5360.8020 +
5506.6250 + *
5533.2130 *
5570.6920 +
5751.6320 *
5888.5020 *
5929.0020
[6030.80]2
6030.8730

Spark Spectrum of Molybdenum

Spark Spectrum of Molybdenum given in following table:

Wave-length.Intensity.
2644.4012
2775.4715
2816.2220
3635.3820
3688.4915
3798.4120 u*
3864.2420
3961.6215
5360.8015 +
5506.7030 *
5533.2820
5570.7015 *
5888.5215 *
5928.0320 +
6030.8920
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