magnesium chloride

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase thermochemistry data

Go To: Top, Gas phase ion energetics data, References, Notes

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

Quantity Value Units Method Reference Comment
Δfgas-93.800kcal/molReviewChase, 1998Data last reviewed in December, 1965
Quantity Value Units Method Reference Comment
gas,1 bar66.205cal/mol*KReviewChase, 1998Data last reviewed in December, 1965

Gas Phase Heat Capacity (Shomate Equation)

Cp° = 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
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 2500. to 6000.
A 14.74280
B 0.136927
C -0.036999
D 0.003152
E -0.103106
F -98.54711
G 83.42729
H -93.80010
ReferenceChase, 1998
Comment Data last reviewed in December, 1965

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, References, Notes

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

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
11.58 ± 0.10EIHildenbrand, 1970RDSH
11.5 ± 0.2EIHildenbrand, 1970, 2RDSH
11.1 ± 0.2EIBerkowitz and Marquart, 1962RDSH
11.80 ± 0.02PELee and Potts, 1979Vertical value; LLK
10.5PEHammer, Allen, et al., 1978Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Cl+19. ± 1.0?EIBerkowitz and Marquart, 1962RDSH
MgCl+12.38 ± 0.10ClEIHildenbrand, 1970RDSH
MgCl+12.4 ± 0.2ClEIHildenbrand, 1970, 2RDSH
MgCl+11.5 ± 0.5ClEIBerkowitz and Marquart, 1962RDSH
Mg+16.31 ± 0.10?EIHildenbrand, 1970RDSH

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, 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]

Hildenbrand, 1970
Hildenbrand, D.L., Electron impact studies of the IIA metal chlorides, Intern. J. Mass Spectrom. Ion Phys., 1970, 4, 75. [all data]

Hildenbrand, 1970, 2
Hildenbrand, D.L., Dissociation energies and chemical bonding in the alkaline-earth chlorides from mass spectrometric studies, J. Chem. Phys., 1970, 52, 5751. [all data]

Berkowitz and Marquart, 1962
Berkowitz, J.; Marquart, J.R., Mass-spectrometric study of the magnesium halides, J. Chem. Phys., 1962, 37, 1853. [all data]

Lee and Potts, 1979
Lee, E.P.F.; Potts, A.W., An investigation of the valence shell electronic structure of alkaline earth halides by using Ab initio S. C. F. calculations and photoelectron spectroscopy, Proc. R. Soc. London A:, 1979, 365, 395. [all data]

Hammer, Allen, et al., 1978
Hammer, C.A.; Allen, J.D., Jr.; Cusachs, L.C.; Schweitzer, G.K., The high-temperature photoelectron spectra of alkaline-earth chlorides and iodides, J. Electron Spectrosc. Relat. Phenom., 1978, 13, 149. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References