Chemical Properties of Silicon tetrafluoride (CAS 7783-61-1)

InChI

InChI=1S/F4Si/c1-5(2,3)4

InChI Key

ABTOQLMXBSRXSM-UHFFFAOYSA-N

Formula

F4Si

SMILES

F[Si](F)(F)F

Molecular Weight¹

104.08

CAS

7783-61-1

Other Names

• SiF4
• Silane, tetrafluoro-
• Silicon fluoride
• Silicon fluoride (SiF4)
• Tetrafluorosilane
• UN 1859

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• S_Prot : Protonation entropy at 298K (J/mol×K).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_{(+) ion} : Enthalpy of formation of positive ion at standard conditions (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• ν : Kinematic viscosity (m²/s).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	[492.00; 502.90]	kJ/mol
PAff	502.90	kJ/mol	NIST
PAff	492.00 ± 8.40	kJ/mol	NIST
PAff	492.90 ± 8.40	kJ/mol	NIST
BasG	[465.70; 476.60]	kJ/mol
BasG	476.60	kJ/mol	NIST
BasG	465.70 ± 8.40	kJ/mol	NIST
BasG	466.50 ± 8.40	kJ/mol	NIST
SProt	[21.00; 21.00]	J/mol×K
SProt	21.00	J/mol×K	NIST
SProt	21.00	J/mol×K	NIST
ΔfH°gas	-1615.00 ± 0.80	kJ/mol	NIST
ΔfH°(+) ion	-134.00 ± 7.10	kJ/mol	NIST
IE	[15.00; 16.50]	eV
IE	15.24 ± 0.14	eV	NIST
IE	15.29 ± 0.08	eV	NIST
IE	15.19	eV	NIST
IE	15.00 ± 1.00	eV	NIST
IE	15.70	eV	NIST
IE	15.81 ± 0.02	eV	NIST
IE	15.92	eV	NIST
IE	15.70 ± 0.10	eV	NIST
IE	16.40	eV	NIST
IE	16.50	eV	NIST
IE	16.45	eV	NIST
IE	16.46 ± 0.04	eV	NIST
log10WS	0.97		Crippen Calculated Property
logPoct/wat	1.300		Crippen Calculated Property
Pc	3714.57 ± 5.06	kPa	NIST
S°gas,1 bar	282.76 ± 0.50	J/mol×K	NIST
Tboil	187.00	K	NIST
Tc	259.00 ± 0.02	K	NIST

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔsubH	25.80	kJ/mol	165.50	NIST

Datasets

Kinematic viscosity, m2/s

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Kinematic viscosity, m2/s - Gas
215.00	198.15	1.0560e-06
215.00	283.66	7.3200e-07
215.00	378.50	5.2400e-07
215.00	461.43	4.3700e-07
215.00	551.52	3.6020e-07
215.00	649.39	3.0310e-07
215.00	746.64	2.5900e-07
230.00	271.49	8.8800e-07
230.00	424.62	5.6300e-07
230.00	578.31	3.9850e-07
230.00	742.99	2.8350e-07
230.00	897.83	2.4990e-07
230.00	1088.35	2.9000e-07
230.00	1250.99	1.7580e-07
245.00	248.32	1.0930e-06
245.00	393.67	6.6020e-07
245.00	542.46	4.9200e-07
245.00	703.75	3.6950e-07
245.00	873.41	2.9490e-07
245.00	1034.47	2.4570e-07
245.00	1220.05	2.0780e-07
245.00	1434.33	1.7380e-07
245.00	1599.80	1.5510e-07
245.00	1777.83	1.3990e-07
245.00	1958.48	1.2460e-07
260.00	206.14	1.3380e-06
260.00	410.06	7.4900e-07
260.00	617.98	4.8200e-07
260.00	830.76	3.5430e-07
260.00	1047.12	2.7410e-07
260.00	1252.04	2.2990e-07
260.00	1498.23	1.9110e-07
260.00	1794.29	1.5750e-07
260.00	2026.63	1.3920e-07
260.00	2282.25	1.2470e-07
260.00	2541.67	1.0970e-07
274.58	524.86	6.3600e-07
274.58	642.96	5.0900e-07
274.58	744.26	4.2440e-07
274.58	845.26	3.8840e-07
274.58	947.16	3.4790e-07
274.58	1048.29	3.1100e-07
274.58	1150.31	2.8600e-07
274.58	1252.18	2.5940e-07
274.58	1353.82	2.4220e-07
274.58	1454.61	2.2790e-07
274.58	1556.05	2.0930e-07
274.58	1657.90	2.0060e-07
274.58	1764.42	1.8190e-07
274.58	1878.13	1.7040e-07
274.58	1998.50	1.6390e-07
274.58	2141.86	1.5180e-07
274.58	2244.21	1.4240e-07
274.58	2354.11	1.3610e-07
274.58	2474.02	1.3050e-07
274.58	2776.62	1.1500e-07
274.58	2951.29	1.0760e-07
300.00	386.04	1.1400e-06
300.00	581.57	7.4200e-07
300.00	775.29	5.2000e-07
300.00	975.51	4.0400e-07
300.00	1173.93	3.2470e-07
300.00	1443.44	2.6900e-07
300.00	1648.68	2.3740e-07
300.00	1872.11	2.1070e-07
300.00	2157.89	1.7100e-07
300.00	2526.14	1.5300e-07
324.96	582.54	8.8400e-07
324.96	731.36	6.0000e-07
324.96	1070.79	4.2200e-07
324.96	1257.38	3.6000e-07
324.96	1487.57	3.1000e-07
324.96	1769.00	2.5860e-07
324.96	1936.20	2.4170e-07
324.96	2114.40	2.1100e-07
324.96	2322.23	1.9890e-07
324.96	2540.96	1.8430e-07
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.01; 3672.24]	kPa	[117.15; 259.00]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.34694e+01
Coefficient B			-1.05775e+03
Coefficient C			-5.79400e+01
Temperature range, min.			117.15
Temperature range, max.			259.00
Pvap	0.01	kPa	117.15	Calculated Property
Pvap	0.53	kPa	132.91	Calculated Property
Pvap	6.12	kPa	148.67	Calculated Property
Pvap	34.36	kPa	164.43	Calculated Property
Pvap	123.64	kPa	180.19	Calculated Property
Pvap	332.10	kPa	195.96	Calculated Property
Pvap	728.47	kPa	211.72	Calculated Property
Pvap	1380.78	kPa	227.48	Calculated Property
Pvap	2347.44	kPa	243.24	Calculated Property
Pvap	3672.24	kPa	259.00	Calculated Property

Similar Compounds

Find more compounds similar to Silicon tetrafluoride.

Sources

• Crippen Method
• Crippen Method
• Kinematic viscosity and speed of sound in gaseous CO, CO2, SiF4, SF6, C4F8, and NH3 from 220 K to 375 K and pressures up to 3.4 MPa
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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