INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 2270
DISTRIBUTION, PRODUCTION AND PROPERTIES OF ALKANES IN NATURE
Atamuratova Bekposhsha Yo‘ldosh qizi
Teacher of the Academic Lyceum of the Tashkent Medical Academy
Urgench Branch.
Abstract
: This article studies the distribution of alkanes in nature, methods of production and
their physical and chemical properties. Alkanes are saturated hydrocarbons widely distributed
in natural gas and oil, and their production is carried out by methods such as hydrogenation,
reaction from halogenated alkanes and cracking. The article analyzes the main chemical
reactions of alkanes, including combustion and halogenation, as well as their physical
properties. This study aims to highlight the importance of alkanes in chemistry and industry.
Keywords:
Alkanes, Natural gas, Oil, Hydrogenation, Cracking, Combustion reaction,
Halogenation, Physical properties
Introduction
Alkanes are a class of saturated hydrocarbons, the molecules of which
contain only one (simple) carbon-carbon bond. They are of great importance in chemistry and
industry, and are widely distributed in natural gas and oil. The scientific study of how alkanes
are distributed in nature, the methods by which they can be obtained, and their physical and
chemical properties is necessary for education and industry. This article discusses the natural
sources of alkanes, methods of their production, and properties. Distribution of alkanes in
nature Alkanes are found as the main components in natural gas and oil. The main part of
natural gas is methane (CH₄), but there are also other small alkanes such as ethane (C₂H₆),
propane (C₃H₈), and butane (C₄H₁₀). These gases are formed as a result of the long-term
decomposition of organic matter in underground formations. Oil also consists of a mixture of
many alkanes, especially long-chain alkanes, and is a raw material for many industries. Alkane
production The main sources of alkanes are natural oil and gas. In addition, alkanes can be
obtained in the laboratory and industry by the following methods:
• Hydrogenation method: Alkanes are obtained as a result of the reduction of organic
substances, especially alcohols, with hydrogen.
• Hydrogenation from halogenated alkanes: Pure alkanes can be obtained by reacting
halogenated hydrocarbons with hydrogen.
• Cracking method: Long-chain hydrocarbons are converted into shorter alkanes as a result of
thermal or catalytic cracking of oil.
These methods are widely used in industry and laboratories.
Physical properties of alkanes The physical properties of alkanes depend on their molecular
mass. Small-molecular alkanes are in a gaseous state, while large-molecular ones are found in a
liquid or solid state. They are insoluble in water, but soluble in organic solvents. Their boiling
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 2271
and melting points increase with increasing molecular weight, as the dispersion forces between
molecules increase. Alkanes are usually colorless and odorless substances.
Chemical properties of alkanes
Alkanes are chemically unreactive, and their molecules contain only single bonds. Their main
reactions are as follows:
• Combustion: Alkanes burn completely to produce carbon dioxide and water. This process is
energetically important and is used as a fuel in industry.
• Halogenation: Alkanes undergo a substitution reaction with halogen atoms under the influence
of ultraviolet light. Halogen alkanes are obtained through this reaction.
• They do not react with strong acids or bases, so they are chemically stable.
Summary Alkanes are important organic compounds that are widely distributed in natural gas
and petroleum. They are obtained by many methods, including hydrogenation, reaction from
halogenated alkanes, and cracking. Their physical and chemical properties allow them to be
widely used in industry as fuels and chemical raw materials. The study of alkanes is of great
importance for modern chemistry and industry.
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