Mass Spectrometric Study of Evaporation of Hydroxyapatite at Temperatures up to 2200 K

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2024-09-09 DOI:10.1134/S0036024424701085

S. I. Lopatin, A. A. Selyutin, V. L. Stolyarova

引用次数: 0

Abstract

The composition of the gas phase was identified for the first time up to a temperature of 2200 K by the Knudsen effusion mass spectrometric method, and the partial pressures of the vapor species during the evaporation of hydroxyapatite were determined. Ca₁₀(PO₄)₆(OH)₂ was evaporated from a Knudsen effusion cell made of tungsten. In the temperature range 1200–1300 K, Ca₁₀(PO₄)₆(OH)₂ undergoes dehydration, forming Ca₃P₂O₈, which evaporates in the form of PO, atomic calcium, and oxygen when the temperature further increases to 1750–2200 K.

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温度高达 2200 K 时羟基磷灰石蒸发的质谱研究

摘要利用克努森渗流质谱法首次鉴定了温度高达 2200 K 的气相组成，并测定了羟基磷灰石蒸发过程中气态物质的分压。Ca10(PO4)6(OH)2是从钨制成的克努森渗流池中蒸发出来的。在 1200-1300 K 的温度范围内，Ca10(PO4)6(OH)2 发生脱水，形成 Ca3P2O8，当温度进一步升高到 1750-2200 K 时，Ca3P2O8 以 PO、原子钙和氧的形式蒸发。

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.