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Related Concept Videos

Volatilization01:10

Volatilization

6.5K
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
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Adsorption of Gases on Solids01:28

Adsorption of Gases on Solids

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Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
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Related Experiment Video

Updated: Apr 15, 2026

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
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Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

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[Study on absorbing volatile oil with mesoporous carbon].

Hong-mei Yan, Xiao-bin Jia, Zhen-hai Zhang

    Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
    |April 9, 2015
    PubMed
    Summary

    Mesoporous carbon effectively absorbs clove and turmeric oils, enhancing active component dissolution and significantly improving thermal stability. This method shows promise for preserving herbal volatile oils.

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    Area of Science:

    • Materials Science
    • Chemical Engineering
    • Pharmacology

    Context:

    • Herbal volatile oils like clove and turmeric possess valuable active components.
    • Developing effective methods for preserving these oils is crucial for their application.
    • Mesoporous carbon offers a high surface area for adsorption applications.

    Purpose:

    • To optimize the absorption of clove oil and turmeric oil by mesoporous carbon.
    • To characterize the resulting material and assess its impact on active component properties.
    • To investigate the effects of mesoporous carbon on the in vitro dissolution and thermal stability of herbal volatile oils.

    Summary:

    • Mesoporous carbon achieved a high adsorption rate for clove and turmeric oils at a 1:1 ratio.
    • The absorption process slightly improved the dissolution rate of active components.
    • Thermal stability of active components was enhanced, with loss rates decreasing by over 50%.

    Impact:

    • This study demonstrates the potential of mesoporous carbon as a carrier for herbal volatile oils.
    • Improved thermal stability and dissolution characteristics could lead to more effective herbal formulations.
    • Further research into this absorption technique is warranted for broader applications in natural product preservation.