Aluminum hydroxide

• Formula: AlHO
• Molecular weight: 43.9889
• CAS Registry Number: 20768-67-6
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

AlO^- +  = HAlO

By formula: AlO^- + H⁺ = HAlO

Vibrational and/or electronic energy levels

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Marilyn E. Jacox

State:   B

State:   A

State:   X

Additional references: Jacox, 1994, page 36; Jacox, 1998, page 143; Apponi, Barclay, et al., 1993

Notes

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Desai, Wu, et al., 1996
Desai, S.R.; Wu, H.; Wang, L.-S., Vibrationally Resolved Photoelectron Spectroscopy of AlO- and AlO2-, Int. J. Mass Spectrom. Ion Proc., 1996, 159, 1-3, 75, https://doi.org/10.1016/S0168-1176(96)04443-6 . [all data]

Damrauer, Krempp, et al., 1991
Damrauer, R.; Krempp, M.; Schmidt, M.W.; Gordon, M.S., Gas-Phase Chemistry of the Dimethylaluminum Oxide Ion and Related Aluminum Oxide Ions - Comparison of Reactivity with Siloxide Ions, J. Am. Chem. Soc., 1991, 113, 7, 2393, https://doi.org/10.1021/ja00007a007 . [all data]

Pilgrim, Robbins, et al., 1993
Pilgrim, J.S.; Robbins, D.L.; Duncan, M.A., Photoionization electronic spectroscopy of AlOH, Chem. Phys. Lett., 1993, 202, 3-4, 203, https://doi.org/10.1016/0009-2614(93)85266-Q . [all data]

Douglas, Hauge, et al., 1982
Douglas, M.A.; Hauge, R.H.; Margrave, J.L., ACS Symposium Ser. 179, American Chemical Society, Washington, D. C., 1982. [all data]

Douglas, Hauge, et al., 1983
Douglas, M.A.; Hauge, R.H.; Margrave, J.L., J. Chem. Soc., 1983, Faraday Trans. 1 79, 1533. [all data]

Hauge, Kauffman, et al., 1980
Hauge, R.H.; Kauffman, J.W.; Margrave, J.L., Infrared matrix-isolation studies of the interactions and reactions of Group 3A metal atoms with water, J. Am. Chem. Soc., 1980, 102, 19, 6005, https://doi.org/10.1021/ja00539a005 . [all data]

Wang and Andrews, 2007
Wang, X.; Andrews, L., Infrared Spectroscopic Observation of the Group 13 Metal Hydroxides, M(OH), J. Phys. Chem. A, 2007, 111, 10, 1860, https://doi.org/10.1021/jp066390e . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Apponi, Barclay, et al., 1993
Apponi, A.J.; Barclay, W.L., Jr.; Ziurys, L.M., The millimeter-wave spectrum of AlOH, Astrophys. J., 1993, 414, L129, https://doi.org/10.1086/187013 . [all data]

Notes

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• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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