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Chemical Name


 

octamethyl-cyclotetrasiloxane (C8H24O4Si4)

Compound Descriptions:

Structure Drawing
Formula:C8H24O4Si4
Molecular Weight:296.616 g/mol
Name(s):octamethyl-cyclotetrasiloxane
tetracyclosiloxane, octamethyl-
octamethylcyclotetrasiloxane
Octamethyl-tetrasil-tetroxan
C8H24O4Si4 (octamethyl-cyclotetrasiloxane)
Cyclotetrasiloxane, octamethyl-
Abil K 4
Cyclic dimethylsiloxane tetramer
D 4
DC 344
Dow Corning 244
Dow Corning 344
KF 994
LS 8620
Mirasil CM 4
NUC Silicone VS 7207
Octamethylcyclotetrasiloxanes
SF 1173
SH 344
Silbione V 2
TSF 404
UC 7207
Union Carbide 7207
Volasil 244
CAS-RN:556-67-2, 83874-62-8, 104986-37-0
EINECS:209-136-7 EINECS
Classification:no charge; oxygen heterocycle; other heterocycle; alicycle; large ring; 8ring; 1fragment

European Regulations

3 matching entries in european regulations: Hazard, GHS, ECHA-pre

Derivatives / Analogues

Analogueother chalcogen: C8H24O3SeSi4 

Landolt-Börnstein Citations:

Acoustical and Optical Properties

 Molecular Acoustics: Vol. II/5 2.1.2, p.49II/5
 Optical Constants: Refractive Indices: Vol. III/38a 2.1.5:477III/38A

Electrical Properties

Mechanical Properties

Structure and Molecular Constants

Thermodynamic Properties

 Heats of Mixing and Solution: Vol. IV/10a 1111:337 (mix)IV/10A
 Heats of Mixing and Solution: Vol. IV/10a 1111:338 (mix)IV/10A
 Heats of Mixing and Solution: Vol. IV/10a 1111:339 (mix)IV/10A
 Heats of Mixing and Solution: Vol. IV/10a 1111:340 (mix)IV/10A
 Thermodynamic Properties of Organic Compounds and Their Mixtures: Vol. IV/8a 3.5.4, p.209IV/8A
 Vapor Pressure of Chemicals: Vol. IV/20b 2.2:1607IV/20B
 Siloxanes + Hydrocarbons: Vapor-Liquid Equilibrium - Octamethylcyclotetrasiloxane C8H24O4Si4 + C5H10 Cyclopentane: Vol. IV/13A1 3142 (mix)IV/13A1
 Siloxanes + Hydrocarbons: Vapor-Liquid Equilibrium - Octamethylcyclotetrasiloxane C8H24O4Si4 + C6H12 Cyclohexane: Vol. IV/13A1 3143 (mix)IV/13A1
 Siloxanes + Hydrocarbons: Vapor-Liquid Equilibrium - Octamethylcyclotetrasiloxane C8H24O4Si4 + C6H6 Benzene: Vol. IV/13A1 3144 (mix)IV/13A1
 Siloxanes + Tetrachloromethane: Vapor-Liquid Equilibrium - Octamethylcyclotetrasiloxane C8H24O4Si4 + CCl4 Tetrachloromethane: Vol. IV/13A1 3145 (mix)IV/13A1

References

II/25D
Short: II/25D
Title: Structure Data of Free Polyatomic Molecules: Molecules Containing Five or More Carbon Atoms
Author: Graner, G.; Hirota, E.; Iijima, T.; Kuchitsu, K.; Ramsay, D.A.; Vogt, J.; Vogt, N.
Editor: Kuchitsu, K.
Source: Landolt-Börnstein, New Series
Volume: II/25D
Year: 2003
Keyword: Free Polyatomic Molecules; Carbon Atoms; Molecules
ISBN: 3-540-42860-7
ISBN: 978-3-540-42860-2
Internet Resource: DOI:10.1007/b75952
RefComment: VIII, 569 pages. Hardcover
RefComment: Written for scientists and researchers in the fields of chemistry and physics
Abstract: This fourth subvolume presents data on the geometric parameters (internuclear distances, bond angles, dihedral angles of internal rotation etc) of free polyatomic molecules including free radicals and molecular ions. The survey on structure data consists of four subvolumes, each containing the geometric parameters determined in the gas phase either by an analysis of the rotational constants (and sometimes the vibrational constants) obtained from microwave, infrared, Raman, electronic and photoelectron spectroscopy or by an analysis of electron diffraction intensities. Most of the structures listed in the tables are for molecules in the electronic ground state, but structures for electronically excited states have also been included as far as they are available. In this fourth subvolume, the structure of molecules containing five to sixty carbon atoms is listed.
II/5
Short: II/5
Title: Molecular Acoustics
Author: Schaaffs, W.
Editor: Hellwege, K.-H.; Hellwege, A.M.
Source: Landolt-Börnstein, New Series
Volume: II/5
Year: 1967
ISBN: 3-540-03897-3
ISBN: 978-3-540-03897-9
Internet Resource: DOI:10.1007/b19950
RefComment: 321 figs., XII, 286 pages, Hardcover
III/38A
Short: III/38A
Title: Refractive Indices of Inorganic, Organometallic, and Organononmetallic Liquids and Binary Liquid Mixtures
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: III/38A
Year: 1996
Keyword: organicmetallic compounds; inorganic compounds; refractive index; liquids; mixtures
ISBN: 3-540-60539-8
ISBN: 978-3-540-60539-3
Internet Resource: DOI:10.1007/b55612
RefComment: VII, 400 pages, Hardcover
Abstract: Volume III/38 Optical Constants provides critically evaluated data on refractive indices of inorganic and organic liquids and their wavelength dependence (dispension). Part A contains the inorganic, organometallic, and organononmetallic liquids, and the binary liquid mixtures (about 900 pure substances and their mixtures). Part B contains data of more than 7600 organic liquids.
IV/10A
Short: IV/10A
Title: Heats of Mixing and Solution: Binary Liquid Systems of Nonelectrolytes
Author: Grolier, J.-P.E.; Wormald, C.J.; Fontaine, J.-C.; Sosnkowska-Kehiaian, K.; Kehiaian, H.V.
Editor: Kehiaian; H.V.
Source: Landolt-Börnstein, New Series
Volume: IV/10A
Year: 2004
Keyword: Nitrogen Containing; Organic Compounds; Pressure; Vapor; Vapor Pressure
ISBN: 3-540-60347-6
ISBN: 978-3-540-60347-4
Internet Resource: DOI: 10.1007/b56530
RefComment: IX, 564 p. 816 illus., Hardcover
RefComment: Written for scientists and engineers in the field of physical chemistry, organic chemistry, applied chemistry
Abstract: This subvolume containes selected data on heats of mixing (excess enthalpies) of binary liquid mixtures of organic and inorganic nonelectrolytes, including aqueous-organic systems, in broad ranges of temperature, pressure, and composition. All the data are extracted from the original literature published from 1957 to 2003. The printed volume presents tables for 800 representative mixtures. The CD-ROM displays all these data, as well as 2853 additional data files, in PDF format and in a fully documented computer readable standard electronic file (SELF) format. Moreover, the ELBT-program allows the fast search of data according to property type, chemical system (substances and mixtures), author(s), source and year of publication. Moreover it allows the correlation of the numerical data with several equations and the display of the original data and of the correlated data in tabular and graphical form.
IV/13A1
Short: IV/13A1
Title: Vapor-Liquid Equilibrium in Mixtures and Solutions. Binary Liquid Systems of Nonelectrolytes. Part 1
Author: Wichterle, I.; Linek, J.; Wagner, Z.; Fontaine, J.-C.; Sosnkowska-Kehiaian, K.; Kehiaian, H. V.
Editor: Kehiaian, H.V.
Source: Landolt-Börnstein, New Series
Volume: IV/13A1
Year: 2007
Keyword: Activity coefficients; Excess Gibbs energy; Mixtures; Nonelectrolytes; Solutions; Vapor-liquid equilibria
ISBN: 978-3-540-49314-3 (Print)
ISBN: 978-3-540-49315-0 (Online)
Internet Resource: doi: 10.1007/978-3-540-49315-0
RefComment: X, 571 p. 820 illus. With CD-ROM., Hardcover
RefComment: Written for: Scientists and engineers in the field of physical chemistry, organic chemistry, inorganic chemistry, biochemistry, applied chemistry
Abstract: This volume is a compilation of vapor–liquid equilibrium data on subcritical binary single-phase or two-phase liquid–liquid systems. All the components are well-defined pure substances, which are organic or inorganic nonelectrolytes, including low-melting ionic liquids and water. The present database contains numerical data for 3316 systems. The book reproduces in tables and graphs the numerical values for only 802 binary mixtures, chosen to be representative of all the compound classes and property types. The full set of data is given on the CD–ROM accompanying the book. Most data files contain experimental data compiled from the original literature published from 1929 to mid 2006. The CD-ROM displays all these data in PDF format and in fully documented computer readable standard electronic files (SELF and ELDATA). The ELBT-program allows the fast search of data according to property type, chemical system, author(s), source and year of publication. It also includes the bibliographical database of ELDATA, EVLM’2006, giving 13471 references from 1888 through mid 2006 to experimental vapor–liquid equilibrium in mixtures and solution.
IV/15A
Short: IV/15A
Title: Diffusion in Gases, Liquids and Electrolytes: Gases in Gases, Liquids and their Mixtures
Author: Winkelmann, J
Editor: Lechner, Manfred Dieter
Source: Landolt-Börnstein, New Series
Volume: IV/15A
Year: 2007
Keyword: binary mixture; diffusion; electrolyte; gas; liquid; quaternary mixture; self-diffusion; supercritical fluid system; ternary mixture; vapor
ISBN: 978-3-540-62429-5 (print)
ISBN: 978-3-540-49718-9 (online)
Internet Resource: doi:10.1007/978-3-540-49718-9
RefComment: VIII, 409 p., Hardcover
RefComment: Written for: Science and engineers in the fields of physics, chemistry, physical chemistry, and material sciences
Abstract: Diffusion – defined as mass, amount, or particle transport process – is the most essential transport property besides viscosity and thermal conductivity. Diffusion is widely used in nature, technical and scientific applications, ranging from diffusion in all kinds of gases, liquids, solids, electrolytes and their mixtures. Due to the large amount of data, the volume LB IV/15 "Diffusion in Gases, Liquids, and Electrolytes" is divided into three subvolumes. Part A: Gases in Gases, Liquids and their Mixtures; Part B: Liquids in Liquids and Liquid Mixtures; Part C: Ions and Electrolytes in Liquids, Electrolytes and Molten Salts. The presented subvolume A includes the main chapters Measurement Methods, Diffusion in Pure Gases, Diffusion in Gaseous Mixtures, Diffusion of Gas/Vapor in Gases or Liquids and Diffusion of Gases in Solution. Due to the very different and widespread measurement methods, a precise description of these methods is given.
IV/16
Short: IV/16
Title: Surface tension of pure liquids and binary mixtures
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: IV/16
Year: 1997
Keyword: organic compounds; surface tension; liquids; mixtures
ISBN: 3-540-63276-X
ISBN: 978-3-540-63276-4
Internet Resource: DOI:10.1007/b60566
RefComment: VII, 439 pages.
IV/18A
Short: IV/18A
Title: Viscosity of Pure Organic Liquids and Binary Liquid Mixtures: Pure Organometallic and Organononmetallic Liquids, Binary Liquid Mixtures
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: IV/18A
Year: 2001
Keyword: organic compounds; viscosity; liquids; mixtures
ISBN: 3-540-64584-5
ISBN: 978-3-540-64584-9
Internet Resource: DOI:10.1007/b68239
RefComment: VII, 409 pages.
IV/1a
Short: IV/1a
Title: Densities of Liquid Systems: Nonaqueous Systems and Ternary Aqueous Systems
Author: Lacmann, R.; Synowietz, C.
Editor: Schäfer, Kl.
Source: Landolt-Börnstein, New Series
Volume: IV/1a
Year: 1974
ISBN: 3-540-06269-6
ISBN: 978-3-540-06269-1
Internet Resource: DOI:10.1007/b20003
RefComment: X, 716 pages. Hardcover
Abstract: Volume IV/1 contains information on the densities of liquid systems. It may be considered as a supplement to volume II/1 of the 6th Edition, which contains only a few data on nonaqueous systems. Data are not listed for all systems but primarily for those of greater interest where data for a larger range of concentrations were available.
IV/20B
Short: IV/20B
Title: Vapor Pressure and Antoine Coefficients for Oxygen Containing Organic Compounds
Author: Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.; Hall, K.R.
Editor: Hall, K.R.
Source: Landolt-Börnstein, New Series
Volume: IV/20B
Year: 2000
Keyword: organic compounds; vapor pressure
ISBN: 3-540-64968-9
ISBN: 978-3-540-64968-7
Internet Resource: DOI:10.1007/b71424
RefComment: VII, 320 pages.
IV/24
Short: IV/24
Title: Surface Tension of Pure Liquids and Binary Liquid Mixtures
Author: Wohlfarth, Ch.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: IV/24
Year: 1998
Keyword: binary liquid mixtures; inorganic liquid; organic liquid; organoarsenic liquid; organoboron liquid; organometallic liquid; organophosphorus liquid; organosilicon liquid; pure liquids; surface tension
ISBN: 978-3-540-75507-4 (print)
ISBN: 978-3-540-75508-1 (Online)
Internet Resource: DOI:10.1007/978-3-540-75508-1
RefComment: Supplement to IV/16
RefComment: VII, 96 p., Hardcover
RefComment: Written for: Scientists and engineers in the fields of physics, chemistry and physical chemistry
Abstract: This Landolt-Börnstein volume IV/24 is a supplement to the volume IV/16 "Surface Tension of Pure Liquids and Binary Liquid Mixtures" and provides surface tension data published in the years 1997-2006. Included in this volume are surface tension data of pure liquids and binary liquid mixtures at different temperatures and pressures, including inorganic compounds, organic compounds, organometallic compounds and organononmetallic compounds and their mixtures. Not all published data could be included in the printed version, but the electronic version contains all available data and references.
IV/6
Short: IV/6
Title: Static Dielectric Constants of Pure Liquids and Binary Liquid Mixtures
Author: Wohlfarth, Ch.
Editor: Madelung, O.
Source: Landolt-Börnstein, New Series
Volume: IV/6
Year: 1991
Keyword: organic compounds; dielectric constant; liquids; mixtures
ISBN: 3-540-54417-8
ISBN: 978-3-540-54417-3
Internet Resource: DOI:10.1007/b44266
RefComment: VIII, 521 pages.
IV/8A
Short: IV/8A
Title: Enthalpies of Fusion and Transition of Organic Compounds
Author: Zhang, Z.-Y.; Frenkel, M.; March, K.N.; Wilhoit, R.C.
Editor: Marsh, K.N.
Source: Landolt-Börnstein, New Series
Volume: IV/8A
Year: 1995
Keyword: organic compounds; enthaly of fusion; melting point; phase transition
ISBN: 3-540-58854-X
ISBN: 978-3-540-58854-2
Internet Resource: DOI:10.1007/b55145
RefComment: VIII, 588 pages.
EINECS
Short: EINECS
Title: EINECS (European Inventory of Existing Commercial Chemical Substances)
Source: Official Journal of the European Communities
Volume: C 146 A (15.06.1990)
Page: 1
Year: 1990
Publish_Date: 1990/06/15

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