Presentation on Aldehyde not good but will work.

1. PRESENTED BY
UBAID ULLAH
DEPARTMENT OF ENVIRONMENTAL SCIENCES
B S 1ST
BASIC CHEMISTRY

2. ALDEHYDE:-
An aldehyde is an organic compound(contains
carbon & hydrogen)containing a functional group
with the –CHO.
It consist of carbonyl center.
Carbon double bonded with oxygen.
Carbon atom also bonded with hydrogen and to an
R group, which is may be any generic alkyl or side
chain.

3. EXAMPLES:-

4. USES OF ALDEHYDE
MEDICAL USES:-
Formaldehyde kills most bacteria, and so a solution
of formaldehyde in water is commonly used as a
disinfectant.
Aldehyde treats the cardiovascular disease.
 Aldehyde treatment of natural tissue creates
cross-links in the collagen molecules while
retaining mechanical strength and collagen
structure.

5. INDUSTRIAL USES:-
Benzaldehyde is commonly employed as a commercial food
flavourant (almond flavor) or industrial solvent, benzaldehyde is also
used in the synthesis of other organic compounds, ranging from
pharmaceuticals to plastic additives.
It is also an important intermediate for the processing of perfume and
flavoring compounds and in the preparation of certain aniline dyes.
Cinnamaldehyde has its most obvious application of flavoring.
 Cinnamaldehyde is used in some perfumes of natural, sweet, or fruity
scents.
 Almond, apricot, butterscotch, and other aromas may partially
employ the compound for their pleasant smells.

6. TOXIC EFFECTS OF ALDEHYDES:-
Breathing acetaldehyde for short periods can hurt your lungs.
Acetaldehyde can also hurt your heart and blood vessels.
 Contact with acetaldehyde liquid or vapor can hurt the skin and
eyes.
 It is not known if breathing, drinking or eating small amounts of
acetaldehyde over long periods will hurt you.
Some animal studies show that acetaldehyde can hurt a growing
fetus.
Other studies on animals show that breathing acetaldehyde can
severely damage the lungs and cause cancer.
Repeated exposure to acetaldehyde in the air may cause cancer in
humans.

7. When you drink alcohol, your liver turns acetaldehyde into an acid.
Some of the acetaldehyde enters your blood, damaging your
membranes and possibly causing scar tissue.
It also leads to a hangover, and can result in a faster heartbeat, a
headache or an upset stomach.
The brain is most affected by acetaldehyde poisoning.
It causes problems with brain activity and can impair memory.
Acetaldehyde can cause amnesia, which is the inability to remember
things.

8. SOURCES OF ALDEHYDES:-
 Aldehydes are organic compounds that are
widespread in nature.
 They can be formed endogenously by lipid
peroxidation (LPO), carbohydrate or metabolism
ascorbate autoxidation, amine oxidases, or
myeloperoxidase-catalyzed metabolic activation.
 Furthermore, it includes not only aldehydes of
environmental or occupational concerns but also
dietary aldehydes and aldehydes formed
endogenously by intermediary metabolism.