二甲基硅二醇的升华压力和热容

IF 2.5 4区工程技术 Q3 CHEMISTRY, PHYSICAL

International Journal of Thermophysics Pub Date : 2025-05-21 DOI:10.1007/s10765-025-03570-0

Michal Fulem, Vojtěch Štejfa, Květoslav Růžička, Michael Molnar

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引用次数: 0

摘要

二甲基硅二醇（Dimethylsilanediol, CAS RN: 1066-42-8）是合成有机硅化合物的中间体，也是这些化合物在环境中降解的中间产物。由于挥发性是评估环境中化学物质命运的关键属性，因此在248至308 K的温度范围内，使用静态方法确定DMSD的升华压力。此外，在269 ~ 293 K的温度范围内测量了结晶DMSD的热容。据我们所知，这是第一次对结晶DMSD升华压力和热容的实验测定。

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Sublimation Pressure and Heat Capacity of Dimethylsilanediol

Dimethylsilanediol (DMSD, CAS RN: 1066-42-8) is used as an intermediate in the synthesis of organosilicon compounds and is also an intermediate degradation product of these compounds in the environment. As volatility is a key property for assessing the fate of chemicals in the environment, the sublimation pressure of DMSD was determined using the static method over a temperature range of 248 to 308 K. In addition, the heat capacity of crystalline DMSD was measured over a temperature range of 269 to 293 K. To the best of our knowledge, this is the first experimental determination of the sublimation pressure and heat capacity of crystalline DMSD.

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来源期刊

International Journal of Thermophysics 物理-力学

CiteScore

4.10

自引率

9.10%

发文量

179

审稿时长

5 months

期刊介绍： International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.