Acetic acid, also known as ethanoic acid, is a colorless organic acid with the chemical formula C2H4O2. It is usually a liquid with a strong, pungent smell. Acetic acid gets its name from the Latin word for vinegar, as it is the main component giving vinegar its sour taste and smell. It has a boiling point of 118.1 degrees Celsius and is miscible with water. Common uses of acetic acid include as a food preservative in vinegar, a solvent, and in the production of other chemicals, vinyl acetate, and esters. The majority of acetic acid for industrial use is produced through the carbonylation of methanol.

1. Few things about Acetic
Acid you must know
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2. Introduction
• Acetic acid which is also known as Ethanoic acid is a
colourless organic acid with chemicals formula
C2H4O2 is liquid with strong and distinctive pungent
and sour smell.
• Acetic acid got its name from a word “Acetum”, which
is a Latin word for vinegar.
• Because of its presence in vinegar, it’s mostly well
known, as the pungent and sour smell is because of
acetic acid in vinegar.
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3. Characteristics of Acetic Acid
• Acetic acid is a weak acid.
• Glacial Ethanoic acid is very much corrosive to metals.
• Boiling point: 118.1 degree Celsius.
• Melting point: 16.6 degree Celsius.
• Acetic acid is miscible with water.
• Acidity: 4.76 pKa, basicity 9.24 pKb and viscosity 1.22 mPa s.
• At STP it has liquid state.
• Sour in taste and have pungent smell.
• Freezes in its purest form. That is why it is also known as glacial
acetic acid.
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4. Ph and molarity of Acetic acid:
• Ph of acids is dependent upon molarity and normality of the
acid.
• So, for 1.0 M or for 1N of acetic acid its pH value will be around
2.4.
• Molarity and Normality of Acetic acid is 17.4.
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5. Common Uses Of Acetic Acid
• Acetic acid being a chemical reagent is widely used for
chemical compounds production.
• The widely use of acetic acid is in the Vinyl Acetate Monomer
production, followed by ester and acetic anhydride production.
• Acetic acid is used as a solvent mainly as a solvent for inks,
paints and coatings.
• Acetic acid is used as a coagulant in manufacturing rubber and
is also used in manufacturing many dye stuffs and perfumes.
• Food industry: Used a a table vinegar and as a preservative.
• Medical industry: Acetic acid injection is used to treat cancer
and is also used in antiseptic creams. It is also used in the
treatment of otitis externa.
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6. Production Of Acetic Acid
Acetic/Ethnaoic acid is manufactured in industries through
synthetically fermentation and bacterial fermentation. Around
75% of acetic acid which is made for use in chemical industries is
made through methanol carbonylation which is a process in
which carbon monoxide along with methanol reacts to produce
acetic acid. Iodomethane is involved as a intermediate in this
process. This process appears in three steps:
CH3OH + HI → CH3I + H2O
CH3I + CO → CH3COI
CH3COI + H2O → CH3COOH + HI
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7. Hazards and safety
Hazards:
• Health hazard: Acetic acid is corrosive for skin and therefore
should be handled with care. Acetic acid causes skin burns,
tissue destruction or eye damage when it comes with contact
to eyes or skin. Inhalation of Acetic acid also causes injury or
can lead to death in case of large amount inhaled.
• Fire hazard: Acetic acid is a combustible element so it may
burn and form explosives materials with air.
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8. Safety:
• Acetic acid should be stored in a clean well
ventilated area and in a tight sealed container.
• Acetic acid should be kept away from heat and
sources of heat.
• Water should not be added to this chemical.
• Following protective gears should be worn when
handling acetic acid: Gloves, Splash Goggles,
Synthetic apron.
• It should be insured that there is nearby eye-wash
stations.

9. Thank You
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