Ca₄H(PO₄)₃:2.₅H₂O

Formula : Ca₄H(PO₄)₃:2.₅H₂O

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Dernière mise à jour le 25.01.2021

Individual properties (298.15 K)

M g·mol^-1	V° cm³·mol^-1	ΔGº_f J·mol^-1	ΔHº_f J·mol^-1	Sº J·mol^-1·k^-1	C_P J·mol^-1·K^-1
491.272		-6148121 (Ref.: 84nan) Nancollas G.H., 1984, The nucleation and growth of phosphate minerals, Chap. 2. In: Phosphate Minerals, J.O. Nriagu and P.B. Moore (Eds), Springer-Verlag, ISBN 3-540-12757-7, 318-329

C_P(T) = a + b·T + ·c·T^-2 (T in Kelvin)

a J·mol^-1·K^-1	*b 10³** J·mol^-1·K^-2	*c 10^-5** J·K·mol^-1	Maier Kelley Ref.

Reaction properties

Ca₄H(PO₄)₃:2.₅H₂O + 5H⁺ ⇌ 4Ca⁺² + 3H₂PO₄^- + 2.5H₂O

298.15 K, 1 bar log₁₀K: 11.81 ΔH°_r: J·mol^-1

T(°C)	0	25	60	100	150	200	250	300
log₁₀K	11.81	11.81	11.81	11.81	11.81	11.81	11.81	11.81

log₁₀K(T) = A + B·T + C·T^-1 + D·log₁₀(T) + E·T⁻² (T in Kelvin)

A	B	C	D	E
11.812540	0.000000	0.000000	0.000000	0.000000