Chemical Properties of phosphorus (CAS 7723-14-0)

InChI

InChI=1S/P

InChI Key

OAICVXFJPJFONN-UHFFFAOYSA-N

Formula

P

SMILES

[P]

Molecular Weight¹

30.97

CAS

7723-14-0

Other Names

• Phosphorus atom
• phosphorus-31
• red phosphorus

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• EA : Electron affinity (eV).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	626.80	kJ/mol	NIST
BasG	604.80	kJ/mol	NIST
EA	[0.75; 0.77]	eV
EA	0.75 ± 0.00	eV	NIST
EA	0.75 ± 0.00	eV	NIST
EA	0.75 ± 0.00	eV	NIST
EA	0.75 ± 0.05	eV	NIST
EA	0.75 ± 0.00	eV	NIST
EA	Outlier 0.77 ± 0.05	eV	NIST
ΔfG°	292.20	kJ/mol	KDB
ΔfH°gas	[316.50; 334.10]	kJ/mol
ΔfH°gas	334.10	kJ/mol	KDB
ΔfH°gas	316.50 ± 1.00	kJ/mol	NIST
IE	[10.49; 10.49]	eV
IE	10.49	eV	NIST
IE	10.49	eV	NIST
IE	10.49	eV	NIST
IE	10.49	eV	NIST
S°gas,1 bar	163.20 ± 0.00	J/mol×K	NIST
S°solid,1 bar	41.09 ± 0.25	J/mol×K	NIST
Tboil	[550.00; 553.60]	K
Tboil	553.60	K	KDB
Tboil	550.00 ± 3.00	K	NIST
Tc	994.00	K	KDB
Tfus	317.30	K	KDB
Ttriple	[317.30; 870.00]	K
Ttriple	870.00 ± 0.60	K	NIST
Ttriple	317.30 ± 0.06	K	NIST

Cheméo can also estimate Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Sources

• Thermodynamic properties of trizirconium tetraphosphate
• Standard molar enthalpies of formation of hydroxy-, chlor-, and bromapatite
• Standard enthalpy of formation of lithium diphosphate
• Standard enthalpy, entropy and Gibbs free energy of formation of "A" type carbonate phosphocalcium hydroxyapatites
• Thermochemistry of La1-xLnxPO4-monazites (Ln = Gd, Eu)
• Aluminum dihydrogen tripolyphosphate: Thermodynamic characteristics
• Isomorphism and phase diagram of Pb5(PO4)3F-Pb5(PO4)3Cl system
• Thermodynamic investigation of thorium and strontium substituted monazite solid-solution
• KDB
• NIST Webbook

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
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