CrPO₄(purple)

Formula : CrPO₄

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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
146.937		-1331300 (Ref.: 51zha) Zharovskii F.G., 1951, The solubility of phosphates. Trudy. Kom. Anal. Khim. Akad. Nauk. SSSR, 3, 101-115 (in russian)

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

CrPO₄(purple) + 2H⁺ ⇌ Cr⁺³ + H₂PO₄^-

298.15 K, 1 bar log₁₀K: 0.30 ΔH°_r: J·mol^-1

T(°C)	0	25	60	100	150	200	250	300
log₁₀K	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30

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

A	B	C	D	E
0.297766	0.000000	0.000000	0.000000	0.000000