| 光谱学与光谱分析 |
|
|
|
|
|
| Thermal Decomposition of 2-H-Heptafluoropropane at Different Temperatures |
| HU Yong-hua,LI Shu-fen* |
| State Key Laboratory of Fire Science and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
|
|
|
|
Abstract The thermal decomposition processes of 2-H-heptafluoropropane were investigated during a 30 second reaction time and at temperatures of 400, 500, 600, 700 and 800 ℃ using fast pyrolysis method and Fourier transform infrared spectra (FTIR) and gas chromatography/mass spectrometry (GC/MS) analytical techniques. The results indicate that the reaction temperatures have the obvious effects on the thermal decomposition of 2-H-heptafluoropropane. The 2-H-heptafluoropropane is steady at first three temperatures, whereas starts to obviously decompose at 700 ℃ and undergoes intense decomposition at 800 ℃. At the same time, coke formation was observed on the surface of the reactor at 800 ℃. Moreover, three cyclocompounds, 1,2-bis(trifluoromethyl)perfluoroindane, perfluoro(1-ethylideneindane) and octafluoronaphthalene, were for the first time discovered in the products of thermal decomposition at 800 ℃. This demonstrates that 2-H-heptafluoropropane experiences not only simple decomposition, but also cyclization and the polymerization reactions under high temperature thermal decomposition conditions.
|
|
Received: 2006-07-26
Accepted: 2006-10-28
|
|
|
|
Corresponding Authors:
LI Shu-fen
E-mail: lsf@ustc.edu.cn
|
|
| Cite this article: |
|
HU Yong-hua,LI Shu-fen. Thermal Decomposition of 2-H-Heptafluoropropane at Different Temperatures[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(12): 2413-2416.
|
|
|
|
| URL: |
|
https://www.gpxygpfx.com/EN/Y2007/V27/I12/2413 |
[1] Hynes R G, Mackie J C. Combustion and Flame, 1998, 113(4): 554.
[2] Howe R F, Thomson S, Yang Y, et al. J. Mol. Catal. A Chem., 2002, 181: 63.
[3] Li K, Oghanna F, Kennedy E, et al. Microporous Mesoporous Mater., 2000, 35: 219.
[4] Yamamoto O, Takahashi K, Inomata T. J. Phys. Chem. A, 2004, 108: 1417.
[5] Williams B A, L'Esperance D M, Fleming J W. Combustion and Flame, 2000, 120(1-2): 160.
[6] Robin M L. Process Safety Progress, 2000, 19: 107.
[7] Peterson S D, Francisco J S. J. Phys. Chem. A, 2002, 106: 3106.
[8] Hynes R G, Mackie J C. J. Phys. Chem. A, 1999, 103: 54.
[9] Yamamoto T, Yasuhara A, Shiraishi F, et al. Chemosphere, 1997, 35: 643.
[10] DING Shi-jin, WANG Peng-fei, ZHANG Wei, et al(丁士进，王鹏飞，张 卫，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2001，21(6)：745.
[11] McNaughton D, Evans C J. Spectrochim. Acta Part A, 1999, 55: 1177.
[12] Bellamy L J. The Infrared Spectra of Complex Molecules, John Wiley, 1958.
[13] Appadoo D R T, Robertson E G, McNaughton D. J. Mol. Spectrosc., 2003, 217: 96.
[14] Barnes R B, Gore R C, Stafford R W, et al. Anal. Chem., 1948, 20: 402.
[15] Richter H, Howard J B. Prog. Progress in Energy and Combustion Science, 2000, 26: 565.
[16] Durlak S K, Biswas P, Shi J, et al. Environ. Sci. Technol., 1998, 32: 2301. |
| [1] |
GUO Ya-fei1, CAO Qiang1, YE Lei-lei1, ZHANG Cheng-yuan1, KOU Ren-bo1, WANG Jun-mei1, GUO Mei1, 2*. Double Index Sequence Analysis of FTIR and Anti-Inflammatory Spectrum Effect Relationship of Rheum Tanguticum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 188-196. |
| [2] |
TIAN Ze-qi1, WANG Zhi-yong1, YAO Jian-guo1, GUO Xu1, LI Hong-dou1, GUO Wen-mu1, SHI Zhi-xiang2, ZHAO Cun-liang1, LIU Bang-jun1*. Quantitative FTIR Characterization of Chemical Structures of Highly Metamorphic Coals in a Magma Contact Zone[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2747-2754. |
| [3] |
ZHANG Xiao-xu1, LIN Xiao-xian3, ZHANG Dan2, ZHANG Qi1, YIN Xue-feng2, YIN Jia-lu3, 4, ZHANG Wei-yue4, LI Yi-xuan1, WANG Dong-liang3, 4*, SUN Ya-nan1*. Study on the Analysis of the Relationship Between Functional Factors and Intestinal Flora in Freshly Stewed Bird's Nest Based on Fourier Transform Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2452-2457. |
| [4] |
WANG Yu-hao1, 2, LIU Jian-guo1, 2, XU Liang2*, DENG Ya-song2, SHEN Xian-chun2, SUN Yong-feng2, XU Han-yang2. Application of Principal Component Analysis in Processing of Time-Resolved Infrared Spectra of Greenhouse Gases[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2313-2318. |
| [5] |
SU Ling1, 2, BU Ya-ping1, 2, LI Yuan-yuan2, WANG Qi1, 2*. Study on the Prediction Method of Pleurotus Ostreatus Protein and
Polysaccharide Content Based on Fourier Transform Infrared
Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1262-1267. |
| [6] |
ZHOU Ao1, 2, YUE Zheng-bo1, 2, LIU A-zuan1, 2, GAO Yi-jun3, WANG Shao-ping3, CHUAI Xin3, DENG Rui1, WANG Jin1, 2*. Spectral Analysis of Extracellular Polymers During Iron Dissimilar
Reduction by Salt-Tolerant Shewanella Aquimarina[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1320-1328. |
| [7] |
FENG Yu, ZHANG Yun-hong*. Rapid ATR-FTIR Principal Component Analysis of Commercial Milk[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 838-841. |
| [8] |
YUE Kong, LU Dong, SONG Xue-song. Influence of Thermal Modification on Poplar Strength Class by Fourier Infrared Spectroscopy Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 848-853. |
| [9] |
ZHANG Yan1, 2, WANG Hui-le1, LIU Zhong2, ZHAO Hui-fang1, YU Ying-ying1, LI Jing1, TONG Xin1. Spectral Analysis of Liquefaction Residue From Corn Stalk Polyhydric
Alcohols Liquefaction at Ambient Pressure[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 911-916. |
| [10] |
QIAO Lu1, LIU Rui-na1, ZHANG Rui1, ZHAO Bo-yu1, HAN Pan-pan1, 2, ZHOU Chun-ya1, 3, ZHANG Yu-qing1, 4, DONG Cheng-ming1*. Analysis of Spectral Characteristics of Soil Under Different Continuous Cropping of Rehmannia Glutinosa Based on Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(02): 541-548. |
| [11] |
CHEN Yong1, 2, GUO Yun-zhu1, WANG Wei3*, WU Xiao-hong1, 2*, JIA Hong-wen4, WU Bin4. Clustering Analysis of FTIR Spectra Using Fuzzy K-Harmonic-Kohonen Clustering Network[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(01): 268-272. |
| [12] |
HU Yun-you1, 2, XU Liang1*, XU Han-yang1, SHEN Xian-chun1, SUN Yong-feng1, XU Huan-yao1, 2, DENG Ya-song1, 2, LIU Jian-guo1, LIU Wen-qing1. Adaptive Matched Filter Detection for Leakage Gas Based on Multi-Frame Background[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(10): 3307-3313. |
| [13] |
JING Jian-yuan, YUAN Liang, ZHANG Shui-qin, LI Yan-ting, ZHAO Bing-qiang*. Multispectral Structural Characterization of Humic Acid-Enhanced Urea[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(08): 2610-2615. |
| [14] |
LI Shu-jie1, LIU Jie1, DENG Zi-ang1, OU Quan-hong1, SHI You-ming2, LIU Gang1*. Study of Germinated Rice Seeds by FTIR Spectroscopy Combined With Curve Fitting[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1832-1840. |
| [15] |
ZHA Ling-ling1, 2, 3, WANG Wei2*, XIE Yu1, SHAN Chang-gong2, ZENG Xiang-yu2, SUN You-wen2, YIN Hao2, HU Qi-hou2. Observation of Variations of Ambient CO2 Using Portable FTIR
Spectrometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(04): 1036-1043. |
|
|
|
|
