Abstract

An infrared cell is described which extends the range of temperatures for liquids up to the critical temperature. Window materials are sapphire or calcium fluoride, sealed to the cell walls by teflon O-rings. Brass may be used for the cell body, but alloys of low thermal expansion are preferable. Thermal expansion of the cell prevents accurate determination of intensities. The cell performed well enough to yield the spectrum of liquid water and alcohol solutions up to the critical points.

© 1962 Optical Society of America

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References

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  1. G. C. Pimentel, A. L. McClellan, The Hydrogen Bond (Freeman, San Francisco and London, 1960).
  2. E. Fishman, H. G. Drickamer, Anal. Chem. 28, 804 (1956).
    [CrossRef]
  3. H. W. Schamp, W. G. Maisch, Rev. Sci. Instr. 32, 414 (1961).
    [CrossRef]
  4. W. C. Waggener, A. C. Tripp, Rev. Sci. Instr. 30, 677 (1959).
    [CrossRef]
  5. W. C. Waggener, Rev. Sci. Instr. 30, 788 (1959).
    [CrossRef]
  6. D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
    [CrossRef]
  7. Société Metallurgique d’Imphy, 84 Rue de Lille, Paris (7e).

1961

H. W. Schamp, W. G. Maisch, Rev. Sci. Instr. 32, 414 (1961).
[CrossRef]

1960

D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
[CrossRef]

1959

W. C. Waggener, A. C. Tripp, Rev. Sci. Instr. 30, 677 (1959).
[CrossRef]

W. C. Waggener, Rev. Sci. Instr. 30, 788 (1959).
[CrossRef]

1956

E. Fishman, H. G. Drickamer, Anal. Chem. 28, 804 (1956).
[CrossRef]

Drickamer, H. G.

E. Fishman, H. G. Drickamer, Anal. Chem. 28, 804 (1956).
[CrossRef]

Fishman, E.

E. Fishman, H. G. Drickamer, Anal. Chem. 28, 804 (1956).
[CrossRef]

Maisch, W. G.

H. W. Schamp, W. G. Maisch, Rev. Sci. Instr. 32, 414 (1961).
[CrossRef]

McClellan, A. L.

G. C. Pimentel, A. L. McClellan, The Hydrogen Bond (Freeman, San Francisco and London, 1960).

Nichols, I. A.

D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
[CrossRef]

Pimentel, G. C.

G. C. Pimentel, A. L. McClellan, The Hydrogen Bond (Freeman, San Francisco and London, 1960).

Schamp, H. W.

H. W. Schamp, W. G. Maisch, Rev. Sci. Instr. 32, 414 (1961).
[CrossRef]

Schurin, B.

D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
[CrossRef]

Tripp, A. C.

W. C. Waggener, A. C. Tripp, Rev. Sci. Instr. 30, 677 (1959).
[CrossRef]

Waggener, W. C.

W. C. Waggener, A. C. Tripp, Rev. Sci. Instr. 30, 677 (1959).
[CrossRef]

W. C. Waggener, Rev. Sci. Instr. 30, 788 (1959).
[CrossRef]

Williamson, D. E.

D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
[CrossRef]

Anal. Chem.

E. Fishman, H. G. Drickamer, Anal. Chem. 28, 804 (1956).
[CrossRef]

Rev. Sci. Instr.

H. W. Schamp, W. G. Maisch, Rev. Sci. Instr. 32, 414 (1961).
[CrossRef]

W. C. Waggener, A. C. Tripp, Rev. Sci. Instr. 30, 677 (1959).
[CrossRef]

W. C. Waggener, Rev. Sci. Instr. 30, 788 (1959).
[CrossRef]

D. E. Williamson, I. A. Nichols, B. Schurin, Rev. Sci. Instr. 31, 528 (1960).
[CrossRef]

Other

Société Metallurgique d’Imphy, 84 Rue de Lille, Paris (7e).

G. C. Pimentel, A. L. McClellan, The Hydrogen Bond (Freeman, San Francisco and London, 1960).

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Figures (3)

Fig. 1
Fig. 1

High-temperature infrared cell, x−x, light path; W—sapphire windows, diameter 12.7 mm, length 9.5 mm, shoulder, 1.6 × 1.6 mm; S—sample space; R—teflon O-rings, No. 10; R—teflon O-rings, No. O; B—teflon backup rings; P—filling plug; G—window guards; T.C.—thermocouple well. The critical dimensions are those of the O-ring grooves, specified by the manufacturer. The choice of threads and the diameter of the cell can be left to the machinist’s discretion.

Fig. 2
Fig. 2

Contours of the infrared-absorption band at 3 μ of liquid water from room temperature to the critical temperature. ν1 and ν3 of gaseous water indicated.

Fig. 3
Fig. 3

Contours of the infrared absorption band at 3 μ of 2% ethanol in acetonitrile.

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