Tetrasiloxane, decamethyl-

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Physical Properties

Property	Value	Unit	Source
ω	0.6820		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
IE	10.24	eV	NIST
logP_oct/wat	4.110		Crippen Calculated Property
P_c	[1190.00; 1264.54]	kPa
P_c	1190.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 11 Compiled value
P_c	1264.54	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
I_np	[1033.00; 1033.00]
I_np	1033.00		NIST
I_np	1033.00		NIST
T_boil	462.44	K	Relay (1.0) Calculated Property
T_c	[599.00; 599.40]	K
T_c	599.00	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 11 Compiled value
T_c	599.40	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
T_fus	197.15	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
V_c	[1.151; 1.157]	m³/kmol
V_c	1.151	m³/kmol	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 11 Compiled value
V_c	1.157	m³/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
V_m	3.66e-04	m³/mol	Thermodynamic Study of Heptane + Silicone Mixtures. Excess Volumes and Enthalpies at 298.15 K
Z_c	0.2750000		IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 11 Compiled value

Cheméo can also estimate Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, 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.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Δ_vapH	[48.20; 50.30]	kJ/mol	[398.50; 422.50]
Δ_vapH	48.20	kJ/mol	398.50	NIST
Δ_vapH	50.30	kJ/mol	422.50	NIST

Datasets

Speed of sound, m/s

Operational condition: Frequency, MHz = 8 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Speed of sound, m/s - Liquid
217.81	2.00	1231.95
217.81	1324.00	1238.8
217.85	9419.00	1278.37
217.90	19699.00	1325.19
217.99	40255.00	1409.21
218.01	60115.00	1481.33
218.09	79712.00	1545.87
218.16	98572.00	1602.99
218.24	118233.00	1658.39
249.84	1077.00	1110.11
249.84	9240.00	1156.24
249.80	19343.00	1208.71
249.80	39384.00	1300.35
249.74	59554.00	1380.75
249.65	80370.00	1454.87
249.53	98950.00	1515.2
249.42	119047.00	1575.46
299.90	16.00	925.67
299.94	121.00	926.31
299.96	958.00	932.76
299.92	1080.00	933.63
299.98	9659.00	994.25
300.00	19671.00	1056.26
300.01	40202.00	1164.31
300.00	60024.00	1252.37
300.00	80266.00	1331.24
300.00	99198.00	1397.65
300.04	119626.00	1463.06
349.93	1369.00	780.56
349.89	9447.00	851.51
349.90	19447.00	925.37
349.93	40092.00	1049.16
349.87	59744.00	1145.45
349.92	80462.00	1232.54
349.89	99170.00	1302.54
349.89	119296.00	1370.82
399.60	1077.00	636.31
399.67	1234.00	638.18
399.60	9691.00	731.33
399.67	20055.00	820.52
399.69	38533.00	945.04
399.69	60934.00	1064.32
399.70	81120.00	1154.26
399.70	99014.00	1224.64
399.55	120290.00	1300.12
450.05	1060.00	502.02
449.89	9702.00	623.33
449.92	19667.00	723.35
449.96	40506.00	876.94
449.99	59941.00	986.94
450.01	80184.00	1082.55
450.03	99670.00	1162.66
450.04	119488.00	1235.39
499.76	1001.00	371.6
499.82	1926.00	395.0
499.78	3058.00	420.07
499.72	4164.00	442.17
499.75	5168.00	460.32
499.61	9979.00	534.61
499.67	20291.00	650.54
499.69	40057.00	807.98
499.72	60022.00	927.39
499.75	80169.00	1026.54
499.80	99589.00	1109.02
499.89	119374.00	1183.6
Reference

Similar Compounds

Cyclotricosasiloxane, hexatetracontamethyl.

Cyclohexacosasiloxane, dopentacontamethyl.

Cyclohexadecasiloxane, dotriacontamethyl.

Cyclononacosasiloxane, octapentacontamethyl.

Cyclopentacosasiloxane, pentacontamethyl.

Find more compounds similar to Tetrasiloxane, decamethyl-.

Mixtures

Sources

Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 11 ChEDL chemicals 1.5.2, from Ambrose, D.; Tsonopoulos, C.; Nikitin, E. D. Vapor-Liquid Critical Properties of Elements and Compounds. 11. Organic Compounds Containing B + O; Halogens + N, + O, + O + S, + S, + Si; N + O; and O + S, + Si. J. Chem. Eng. Data 2009, 54, 669-689.
PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
Cheméo Relay (1.0)
Crippen Method
Crippen Method
Speed of Sound Measurements and Fundamental Equations of State for Octamethyltrisiloxane and Decamethyltetrasiloxane
Bubble-Point Measurements and Modeling of Binary Mixtures of Linear Siloxanes
Thermodynamic Study of Heptane + Silicone Mixtures. Excess Volumes and Enthalpies at 298.15 K
Octanol/Air Partition Coefficients of Volatile Methylsiloxanes and Their Temperature Dependence
NIST Webbook

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Chemical Properties of Tetrasiloxane, decamethyl-