Ethanethiol (Ethyl mercaptan), C 2 H 5 SH

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Ethanethiol (Ethyl mercaptan), C₂H₅SH
Categories:	Fluid; Solvent
Key Words:	C2H5SH
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Physical Properties	Original Value	Comments

Density	0.839 g/cc @Temperature 20.0 °C
Viscosity	0.249 cP @Temperature 20.0 °C	Dynamic Viscosity
Molecular Weight	62.134 g/mol
Vapor Pressure	434.248 torr @Temperature 20.0 °C
Surface Tension	22.39 dynes/cm @Temperature 20.0 °C

Chemical Properties	Original Value	Comments
Critical Pressure	54.2 atm
Critical Temperature	226 °C
Critical Density	0.300 g/cc
Critical Molar Volume	207 cm³/mol

Thermal Properties	Original Value	Comments
Heat of Vaporization	431 J/g
Specific Heat Capacity	1.187 J/g-°C @Temperature 25.0 °C	Vapor
Melting Point	-147.9 °C
Boiling Point	35.1 °C

Descriptive Properties
Antoine's Vapor Pressure A Parameter	16.0077
Antoine's Vapor Pressure B Parameter	2497.23
Antoine's Vapor Pressure C Parameter	-41.77
Antoine's Vapor Pressure Formula	ln π_p = A - B/(T+C)	P in mmHg and T in K
CAS registry number (CARN)	75-08-1
Chemical Formula	C₂H₅SH
Critical Compressibility (Zc)	0.274
Dipole moment (p/C.m)	5.003E-28
Dynamic Viscosity Formula	log₁₀ η=A(1/T-1/B)
Dynamic Viscosity Parameter A	419.6
Dynamic Viscosity Parameter B	206.21
Molar Heat Capacity (298K)	73.747 J/mol-K
Molar Heat Capacity of Vapor a Parameter	14.9118
Molar Heat Capacity of Vapor b Parameter	0.2349
Molar Heat Capacity of Vapor c Parameter	-0.0001355
Molar Heat Capacity of Vapor d Parameter	3.16E-08
Molar Heat Capacity of Vapor Formula	C_p = a + bT + cT² + dT³	C_p in J/mol-K

References for this datasheet.

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