Abstract

The infra-red emission spectra of the oxy-hydrogen and oxy-deuterium flames and of hot water vapor have been studied in the LiF, NaCl, and KBr regions. The principal features of the spectrum may be accounted for by emission of H2O molecules; no unequivocal evidence for radiation from OH radicals was found with the resolving power available.

© 1949 Optical Society of America

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References

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  1. E. K. Plyler and C. J. Humphreys, J. Research Nat. Bur. of Stand. 40, 449 (1948).
    [Crossref]
  2. N. Wright, Rev. Sci. Inst. 15, 22 (1944).
    [Crossref]
  3. These data were obtained from: E. K. Plyler and W. W. Sleator, Phys. Rev. 37, 1493 (1931); L. R. Weber and H. M. Randall, Phys. Rev. 40, 835 (1932); N. Ginsburg, Phys. Rev. 74, 1052 (1948).
    [Crossref]
  4. G. H. Dieke and H. M. Crosswhite, The Ultraviolet Bands of OH, Johns Hopkins University, CF-790.

1948 (1)

E. K. Plyler and C. J. Humphreys, J. Research Nat. Bur. of Stand. 40, 449 (1948).
[Crossref]

1944 (1)

N. Wright, Rev. Sci. Inst. 15, 22 (1944).
[Crossref]

1931 (1)

These data were obtained from: E. K. Plyler and W. W. Sleator, Phys. Rev. 37, 1493 (1931); L. R. Weber and H. M. Randall, Phys. Rev. 40, 835 (1932); N. Ginsburg, Phys. Rev. 74, 1052 (1948).
[Crossref]

Crosswhite, H. M.

G. H. Dieke and H. M. Crosswhite, The Ultraviolet Bands of OH, Johns Hopkins University, CF-790.

Dieke, G. H.

G. H. Dieke and H. M. Crosswhite, The Ultraviolet Bands of OH, Johns Hopkins University, CF-790.

Humphreys, C. J.

E. K. Plyler and C. J. Humphreys, J. Research Nat. Bur. of Stand. 40, 449 (1948).
[Crossref]

Plyler, E. K.

E. K. Plyler and C. J. Humphreys, J. Research Nat. Bur. of Stand. 40, 449 (1948).
[Crossref]

These data were obtained from: E. K. Plyler and W. W. Sleator, Phys. Rev. 37, 1493 (1931); L. R. Weber and H. M. Randall, Phys. Rev. 40, 835 (1932); N. Ginsburg, Phys. Rev. 74, 1052 (1948).
[Crossref]

Sleator, W. W.

These data were obtained from: E. K. Plyler and W. W. Sleator, Phys. Rev. 37, 1493 (1931); L. R. Weber and H. M. Randall, Phys. Rev. 40, 835 (1932); N. Ginsburg, Phys. Rev. 74, 1052 (1948).
[Crossref]

Wright, N.

N. Wright, Rev. Sci. Inst. 15, 22 (1944).
[Crossref]

J. Research Nat. Bur. of Stand. (1)

E. K. Plyler and C. J. Humphreys, J. Research Nat. Bur. of Stand. 40, 449 (1948).
[Crossref]

Phys. Rev. (1)

These data were obtained from: E. K. Plyler and W. W. Sleator, Phys. Rev. 37, 1493 (1931); L. R. Weber and H. M. Randall, Phys. Rev. 40, 835 (1932); N. Ginsburg, Phys. Rev. 74, 1052 (1948).
[Crossref]

Rev. Sci. Inst. (1)

N. Wright, Rev. Sci. Inst. 15, 22 (1944).
[Crossref]

Other (1)

G. H. Dieke and H. M. Crosswhite, The Ultraviolet Bands of OH, Johns Hopkins University, CF-790.

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Figures (4)

Fig. 1
Fig. 1

(a) The emission spectrum of the oxy-hydrogen flame in the region 2950–7500 cm−1. Slit widths are indicated by the numbers next to the Δ’s. (b) The emission spectrum of a jet of hot water vapor in the LiF region. (The temperature is roughly 1300°K.) These curves both show the absorption in the region of 3600 cm−1 which is characteristic of this LiF prism. Slit widths are indicated by the numbers next to the Δ’s.

Fig. 2
Fig. 2

The emission spectrum of the oxy-hydrogen flame in the region 700–2000 cm−1 obtained with a NaCl prism. Slit widths are indicated by the numbers next to the Δ’s.

Fig. 3
Fig. 3

The emission spectrum of the oxy-hydrogen flame in the region 465–975 cm−1 obtained with a KBr prism. Slit widths are indicated by the numbers next to the Δ’s.

Fig. 4
Fig. 4

The emission spectrum of the oxy-deuterium flame in the region 2350–6500 cm−1 obtained with a LiF prism. Slit widths are indicated by the numbers next to the Δ’s.

Tables (5)

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Table I Observed emission bands.

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Table II Observed oxy-hydrogen and oxy-deuterium flame lines.

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Table III Observed H2O absorption lines.

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Table IV * Vibration-rotation lines of OH calculated.

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Table V Rotation lines of OH calculated.