Acetic acid is an organic compound with the chemical formula
CH3CO2H (also written as CH3COOH). It is a colourless liquid
that when undiluted is also called glacial acetic acid. Acetic
acid is the main component of vinegar (apart from water),
and has a distinctive sour taste and pungent smell. It is
mainly produced as a precursor to polyvinylacetate and cellulose
acetate. Although it is classified as a weak acid, concentrated
acetic acid is corrosive, and attacks the skin.
Acetic acid is one of the simplest carboxylic acids.
It is an important chemical reagent and industrial chemical,
mainly used in the production of cellulose acetate mainly
for photographic film and polyvinyl acetate for wood glue,
as well as synthetic fibres and fabrics. In households, diluted
acetic acid is often used in descaling agents. In the food
industry, acetic acid is used under the food additive code
E260 as an acidity regulator and as a condiment. As a food
additive it is approved for usage in the EU, USA and Australia
and New Zealand.
Acetic acid from vinegar are sour taste and pungent odor.
Carboxylic acids is the smallest. Clear and colorless, it
is also corrosive properties.
Acetic acid is completely soluble in water. Salt and the acetate
ester is called. CH3COOH chemical formula, molecular weight
60.05 g / mole, 1,266 g/cm3 density, melting point 16.5 °
C and the boiling point of 118.1 ° C.
Vinegar contains acetic acid, 4-5% is usually used to establish
a pickle nits, but this proportion reaches 18%. Most foods
will cause the acidic environment created by vinegar inhibits
the growth of microorganisms. Therefore, an effective method
to extend the life of vegetables to make pickles.
The global demand of acetic acid is around 6.5 million tonnes
per year (Mt/a), of which approximately 1.5 Mt/a is met by
recycling; the remainder is manufactured from petrochemical
feedstock. As a chemical reagent, biological sources of acetic
acid are of interest but generally uncompetitive. Vinegar
is dilute acetic acid, often produced by fermentation.
30 and 60 lt .
Physical and Chemical Properties of Acetic Acid
and Chemical Properties of Acetic Acid
| Acetic acid,
|The molecular weight
|| 60.05 g/mol
|| 1.266 g cm-3
|| 16.5 °C (289.6 ± 0.5 K) (61.6 °F)
|| 118.1 °C (391.2 ± 0.6 K) (244.5 °F)
|| (C°) : 16.6
|80% Solution Freezing Point
|| (°C) : -8
|| (°C) : 37
|| (°C) : 500
|Vapor Pressure(mbar 20°C)
Acetic Acid Uses
The preparation of chemical preparations
Pharmaceutical and cosmetic products
Etching in the construction materials
As coagulator in rubber production
in the pharmaceutical industry
the production of cellulose acetate
Anhydride used in production.