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SONOCHEMISTRY (APPLICATIONS OF ULTRASOUND IN CHEMICAL SYNTHESIS AND REACTIONS): A REVIEW PART I

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Last updated: 22 Jan 2023

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Abstract

Sonochemistry is a powerful and green approach which is being used to accelerate synthesis of organic compounds, and involves the use of ultrasound technique to promote chemical reactions. Ultrasound is the part of the sonic spectrum, which ranges from about 20 KHz to 10 MHz. A large number of organic reactions can be carried out under ultrasonic irradiation in high yields, short reaction times, and mild conditions. Ultrasonic irradiation of liquids causes high energy chemical reactions to occur, often with the emission of light. The origin of sonochemistry and sonoluminescence is acoustic cavitation which is  the formation, growth, and implosive collapse of bubbles. The collapse of bubbles caused by cavitation produces intense local heating and high pressures, with very short lifetimes (Hot spots). These hot-spots have an equivalent temperatures of roughly 5,000 K, pressures of about 1,000 atm, and increase reactivity by nearly million-fold using the radical mechanism. A variety of devices have been used for ultrasonic irradiation of solutions. 

DOI

10.21608/ajps.2016.6890

Keywords

Acoustic cavitation, Ultrasound, sonoluminescence, name reactions

Authors

First Name

Menshawy

Last Name

. Mohamed

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Affiliation

Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box- 173, Al-Kharj 11942, Saudi Arabia. /bDepartment of Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt

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Volume

53

Article Issue

1

Related Issue

1229

Issue Date

2016-03-01

Receive Date

2018-05-12

Publish Date

2016-03-01

Page Start

108

Page End

122

Print ISSN

1110-1644

Online ISSN

2535-1958

Article File

AJPS_Volume 53_Issue 1_Pages 108-122.pdf

PDF . 748.8kB

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https://ajps.journals.ekb.eg/article_6890.html

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https://ajps.journals.ekb.eg/service?article_code=6890

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Original Article

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518

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Publication Title

Al-Azhar Journal of Pharmaceutical Sciences

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https://ajps.journals.ekb.eg/

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Article

Created At

22 Jan 2023