NaB(OH)4

Formula : NaB(OH)4

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
101.830 32.857 (Ref.: 95pok/sch) Pokrovski G.S., Schott J. and Sergeyev A.S., 1995. Experimental determination of the stability constants of NaSO4minus and NaB (OH)40 in hydrothermal solutions using a new high-temperature sodium-selective glass electrode - Implications for boron isotopic fractionation. Chemical Geology, 124, p. 253-265. -1416619 (Ref.: 95pok/sch) Pokrovski G.S., Schott J. and Sergeyev A.S., 1995. Experimental determination of the stability constants of NaSO4minus and NaB (OH)40 in hydrothermal solutions using a new high-temperature sodium-selective glass electrode - Implications for boron isotopic fractionation. Chemical Geology, 124, p. 253-265. -1585029 (Ref.: Internal calculation) 164.013 (Ref.: 95pok/sch) Pokrovski G.S., Schott J. and Sergeyev A.S., 1995. Experimental determination of the stability constants of NaSO4minus and NaB (OH)40 in hydrothermal solutions using a new high-temperature sodium-selective glass electrode - Implications for boron isotopic fractionation. Chemical Geology, 124, p. 253-265. 146.83 (Ref.: 95pok/sch) Pokrovski G.S., Schott J. and Sergeyev A.S., 1995. Experimental determination of the stability constants of NaSO4minus and NaB (OH)40 in hydrothermal solutions using a new high-temperature sodium-selective glass electrode - Implications for boron isotopic fractionation. Chemical Geology, 124, p. 253-265.
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
26.1918 31.4218 11.7152 -12.9286 307.5240 -79.0776 0.0000
Reaction properties

B(OH)3 + Na+ + H2O ⇌ NaB(OH)4 + H+

298.15 K, 1 bar log10K: -8.98 ΔH°r:13466 J·mol-1 (Ref.: 95pok/sch) Pokrovski G.S., Schott J. and Sergeyev A.S., 1995. Experimental determination of the stability constants of NaSO4minus and NaB (OH)40 in hydrothermal solutions using a new high-temperature sodium-selective glass electrode - Implications for boron isotopic fractionation. Chemical Geology, 124, p. 253-265.
T(°C) 0 25 60 100 150 200 250 300
log10K -9.21 -8.98 -8.75 -8.55 -8.37 -8.21 -8.07 -7.91
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-29.853208 0.003320 2843.865199 5.878099 -373134.029737