I. Introduction
A. The History of Carbon
2. Occurrences in Nature
A. Diamond
M. Graphite
C. Coal and Charcoal
M. Amorphous Carbon
III. Carbon dioxide Compounds
A. Inorganic
N. Organic
IV. The Co2 Cycle
4. Conclusion
Co2, an element found out before record itself, is one of the most
abundant elements inside the universe. It can be found in the sunlight, the stars
comets, and the atmospheres of most exoplanets. There are near ten , 000, 000
known carbon dioxide compounds, thousands of which happen to be vital towards the basis of your life
itself (WWW 1).
Carbon dioxide occurs in several forms in nature. One of its purest varieties is gemstone.
Diamond is definitely the hardest compound known on earth. Although diamonds found in
mother nature are colorless and transparent, when coupled with other elements its
color can range from pastels to black. Diamond is a poor conductor of heat and
electrical energy. Until 1955 the only causes of diamond had been found in deposits of
volcanic origin. Ever since then scientists include found strategies to make diamond from
graphite and other artificial materials. Diamond jewelry of accurate gem top quality are not
manufactured in this way (Beggott 3-4).
Graphite is another sort of carbon. It occurs as a mineral in nature, however it
can be made artificially via amorphous carbon dioxide. One of the main purposes of
graphite is good for its lubricating qualities. One more is for the lead in pencils.
Graphite is used like a heat resistant material and a great electricity conductor. It
is usually used in indivisible reactors being a lubricator (Kinoshita 119-127).
Shadowy carbon is a deep black powder that happens in characteristics as a element of
coal. It could be obtained unnaturally from almost any organic element by
heating system the material to extremely high temperatures with no air. That way
coke is definitely produced from coal, and charcoal is produced from wood. Unstable
carbon is the most reactive kind of carbon. Since amorphous carbon burns
very easily in atmosphere, it is utilized as a burning fuel. The most important uses for
amorphous carbon are as a filler for plastic and as a black pigment in color (WWW
2).
There are two kinds of co2 compounds. The foremost is inorganic. Inorganic
compounds happen to be binary substances of carbon dioxide with precious metals or metal carbides. That they
have homes ranging from reactive and saltlike, found in alloys such as
sodium, magnesium, and aluminum, for an unreactive and metallic, including titanium
and niobium (Beggott 4).
Carbon dioxide compounds made up of nonmetals usually are gases or perhaps liquids with low
boiling points. Carbon monoxide, a gas, is unsmelling, colorless, and tasteless.
That forms through the incomplete combustion of carbon (Kinoshita 215-223). It is
highly toxic to animals as it inhibits the transport of oxygen in the blood
by hemoglobin (WWW 2). Carbon is a colorless, almost odorless gas that
is formed by the combustion of carbon. It is a product which will result from
respiration in most living organisms and it is used by plant life as a way to obtain carbon.
Frozen carbon dioxide, known as dry ice, is used as being a refrigerant.
Fluorocarbons, such as Freon, are used while refrigerants (Kinoshita 225-226).
Organic and natural compounds happen to be those compounds that result from nature. The simplest
organic ingredients consist of simply carbon and hydrogen, the hydrocarbons. The
state of matter to get organic compounds depends on just how many carbons are included
in it. If a substance has about four carbons it is a gas, if it has up to twenty
carbons it is just a liquid, of course, if it has much more than 20 carbons it is a solid
(Kinoshita 230-237).
The carbon cycle is a system of natural and chemical processes that will make
carbon accessible to living things for use in tissue building and energy release
(Kinoshita 242). All living skin cells are composed of proteins including carbon
hydrogen, oxygen, and nitrogen in various combinations, and living organism
puts these elements together in respect to a unique genetic code. To do this the
organism must have these accessible in special ingredients built about carbon.
These special substances are created only by plants, by process of
photosynthesis. Photosynthesis can be described as process by which chlorophyll barriers and uses
energy through the sun in the form of light. Half a dozen molecules of carbon dioxide
match six substances of normal water to form one particular molecule of glucose (sugar).
The sugar molecule consists of six atoms of carbon, twelve of hydrogen, and
six of oxygen. Six oxygen elements, consisting of two oxygen atoms each, are
also created and are dismissed into the atmosphere unless the rose needs
energy to live. If so, the o2 combines together with the glucose immediately
releasing half a dozen molecules of carbon dioxide and six of water for every single molecule of
glucose (Beggott 25-32). The carbon pattern is then completed as the plant
obtains the energy that was stored by the glucose. The length of time required
to complete the cycle varies. In plants without an instant need for energy
the chemical substance processes continue in a variety of ways. By reducing the hydrogen
and oxygen content material of most of the sugar substances by 1 water molecule and
combining them to type large molecules, plants create substances just like starch
inulin, and excess fat and store them for future employ. Regardless of whether the
stored meals is used afterwards by the plant or used by a few other organism, the
molecules can ultimately always be digested and oxidized, and carbon dioxide and water
will probably be discharged. Various other molecules of sugar undergo a series of chemical
changes and they are finally put together with nitrogen chemical substances to form healthy proteins
substances, which are then accustomed to build damaged tissues (WWW 2).
Although necessary protein substances might pass from organism to organism, sooner or later
these also are oxidized and type carbon dioxide and water since cells need replacing and
will be broken down, or as the organisms expire. In either case, a brand new set of
creatures, ranging from fungus to the large scavengers, use the waste products or
tissues pertaining to food, absorbing and oxidizing the substances for strength release (WWW
1).
In various instances in the Earths history, a lot of plant and animal tissue have
been protected by simply erosion and sedimentation in the natural agents of
decomposition and converted into substances such as peat, lignite, petroleum
and coal. The carbon circuit, temporarily interrupted in this manner, is usually
completed since fuels are burned, and carbon dioxide and water will be again included in
the atmosphere for recycle by living things, and the solar power stored by simply
photosynthesis ages ago can be released (Kinoshita 273-275).
All the things around us today has its own connection with carbon or a co2
compound. Carbon is in just about every living organism. Without carbon life would not
exist as you may know it.
Performs Cited
1 . Beggott, John Great Projectiles of CarbonNew Scientist, This summer 6, 1991
2 . Kinoshita, Kim Carbon Compounds Randomly, New York 119-275
1987
three or more. WWWCarbon http://www.usc.edu/chem/carbon.html1995
4. WORLD WIDE WEB Carbon Compounds http://www.harvard.edu/depts/chem/carbon.html
95
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