KHPO4-

Formula : KHPO4-

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
 V°
cm3·mol-1
 ΔGºf
J·mol-1
 ΔHºf
J·mol-1
 Sº
J·mol-1·k-1
 CP
J·mol-1·K-1
135.078 -1382948 (Ref.: 89mar/smi) Martell A.E., and Smith R.M., 1989, Critical Stability Constants, Vol. 3: Other Organic Ligands (2nd printing). Plenum, New York, 495 p. -1523150 (Ref.: 97smi/mar) Smith R. M., Martell A. E., and Motekaitis R. J. (1997) NIST Critically Selected Stability Constants of Metal Complexes Database, Version 4.0. NIST Standard Reference Database 46. U.S. Department of Commerce 176.514 (Ref.: Internal calculation)
HKF coefficients
a1·10
J·mol-1·bar-1
 a2·10-2
J·mol-1
 a3
J·K·mol-1·bar-1
 a4·10-4
J·K·mol-1
 c1
J·mol-1·K-1
 c2·10-4
J·K·mol-1
 ω·10-5
J·mol-1
Reaction properties

K+ + H2PO4- ⇌ KHPO4- + H+

298.15 K, 1 bar log10K: -6.43 ΔH°r:31590 J·mol-1 (Ref.: 97smi/mar) Smith R. M., Martell A. E., and Motekaitis R. J. (1997) NIST Critically Selected Stability Constants of Metal Complexes Database, Version 4.0. NIST Standard Reference Database 46. U.S. Department of Commerce
T(°C) 0 25 60 100 150 200 250 300
log10K -6.93 -6.43 -5.85 -5.31 -4.77 -4.30 -3.83 -3.24
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
841.524753 0.127013 -47518.124277 -305.494079 2620235.377950