Tetrachlorosilane (Silicon tetrachloride), SiCl 4

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Tetrachlorosilane (Silicon tetrachloride), SiCl₄
Categories:	Fluid; Solvent
Material Notes:	CAS Number: 10026-04-7 Physical Form: Colorless Fuming Liquid
Key Words:	SiCl4
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Physical Properties	Metric	English	Comments

Density	1.48 g/cc	0.0535 lb/in³
Molecular Weight	169.897 g/mol	169.897 g/mol
Vapor Pressure	0.257974 bar @Temperature 20.0 °C	193.497 torr @Temperature 68.0 °F

Chemical Properties	Metric	English	Comments
Critical Pressure	35.9800 bar	26987.2 torr
Critical Temperature	235.1 °C	455.2 °F
Critical Density	0.521 g/cc	0.0188 lb/in³
Critical Molar Volume	326 cm³/mol	19.9 in³/mol

Electrical Properties	Metric	English	Comments
Magnetic Susceptibility	-0.0000875	-0.0000875	cm^3/mol

Thermal Properties	Metric	English	Comments
Heat of Fusion	44.73 J/g	19.24 BTU/lb
Heat of Vaporization	168.9 J/g	72.67 BTU/lb	At Boiling Point
	174.8 J/g @Temperature 25.0 °C	75.20 BTU/lb @Temperature 77.0 °F
Specific Heat Capacity	0.5315 J/g-°C	0.1270 BTU/lb-°F	Gas
	0.8552 J/g-°C	0.2044 BTU/lb-°F	Crystal
Thermal Conductivity	0.101 W/m-K @Temperature 20.0 °C	0.701 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	-68.85 °C	-91.93 °F
Boiling Point	57.65 °C	135.8 °F
Heat of Formation	-687 kJ/mol	-687 kJ/mol	Crystal
	-657 kJ/mol	-657 kJ/mol	Gas

Descriptive Properties
Antoine's Vapor Pressure A Parameter	15.8019
Antoine's Vapor Pressure B Parameter	2634.16
Antoine's Vapor Pressure C Parameter	-43.15
Antoine's Vapor Pressure Formula	ln π_p = A - B/(T+C)		P in mmHg and T in K
Critical Compressibility (Zc)	0.29
Molar Heat Capacity (298K)	0 J/mol-K
Solubility	Reacts with H₂O

References for this datasheet.

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