Cyclodecasiloxane, eicosamethyl-
- Formula: C20H60O10Si10
- Molecular weight: 741.5394
- IUPAC Standard InChI: InChI=1S/C20H60O10Si10/c1-31(2)21-32(3,4)23-34(7,8)25-36(11,12)27-38(15,16)29-40(19,20)30-39(17,18)28-37(13,14)26-35(9,10)24-33(5,6)22-31/h1-20H3
- IUPAC Standard InChIKey: CDNNKGWZSNSADW-UHFFFAOYSA-N
- CAS Registry Number: 18772-36-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Eicosamethyl-cyclodecasiloxane
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Phase change data
Go To: Top, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 270. | K | N/A | Alvik and Dale, 1971 | Uncertainty assigned by TRC = 0.1 K; TRC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 71.3 | 495. | A | Stephenson and Malanowski, 1987 | Based on data from 480. to 603. K.; AC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 39.76 | 265.8 | Alvik, Dale, et al., 1971 | AC |
Gas Chromatography
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Methyl Silicone | 2029. | Fujimoto, Ohtani, et al., 1990 | 25. m/0.25 mm/0.1 μm, He, 5. K/min; Tstart: 40. C; Tend: 350. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Ultra-1 | 2023. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
| Capillary | Ultra-1 | 2025. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
| Capillary | Ultra-1 | 2030. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
| Capillary | Ultra-1 | 2033. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
| Capillary | Ultra-1 | 2033. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
| Capillary | Ultra-1 | 2037. | Kazuyoshi, Seiichi, et al., 2000 | 30. m/0.25 mm/0.50 μm; Program: 40 0C (5 min) 10 0C/min -> 200 0C 20 0C/min -> 320 0C (13 min) |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Alvik and Dale, 1971
Alvik, T.; Dale, J.,
On the Lack of Conformational Preferences for Cyclic Dimethylsiloxane Oligomers.,
Acta Chem. Scand., 1971, 25, 2131, https://doi.org/10.3891/acta.chem.scand.25-2131
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Alvik, Dale, et al., 1971
Alvik, Thor; Dale, Johannes; Fernholt, L.; Hedberg, Kenneth; Schaumburg, Kjeld; Ehrenberg, L.,
On the Lack of Conformational Preferences for Cyclic Dimethylsiloxane Oligomers.,
Acta Chem. Scand., 1971, 25, 2131-2141, https://doi.org/10.3891/acta.chem.scand.25-2131
. [all data]
Fujimoto, Ohtani, et al., 1990
Fujimoto, S.; Ohtani, H.; Yamagiwa, K.; Tsuge, S.,
Study on retention behavior of cyclic siloxanes by high resolution pyrolysis-gas chromatography with a fused silica capillary column,
J. Hi. Res. Chromatogr., 1990, 13, 6, 397-404, https://doi.org/10.1002/jhrc.1240130603
. [all data]
Kazuyoshi, Seiichi, et al., 2000
Kazuyoshi, N.; Seiichi, Y.; Kazuo, K.; Katsumi, I.; Okihiko, S.,
Polymer analysis by improved pyrolysis gas chromatography hyphenated with four specific detectors,
J. Soc. Cosmet. Chem. Jpn., 2000, 34, 2, 142-151, https://doi.org/10.5107/sccj.34.142
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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