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Acetic acid
General
Systematic name Acetic acid
Ethanoic acid
Other names Methanecarboxylic acid
Acetyl hydroxide (AcOH)
Hydrogen acetate (HAc)
Molecular formula CH3COOH
SMILES CC(=O)O
Molar mass 60.05 g/mol
Appearance Colourless liquid
or crystals
CAS number *
Properties
Density and phase 1.049 g/cm3, liquid
1.266 g/cm3, solid
Solubility in water Fully miscible
In ethanol,acetone
In toluene, hexane
In carbon disulfide
Fully miscible
Fully miscible
Pract. insoluble
Melting point 16.7 °C (289.9 K)(62.1 °F)
Boiling point 118.1 °C (391.2 K)(244.6 °F)
Acidity (pKa) 4.76
Viscosity 1.22 mPa·s at 25 °C
Dipole moment 1.74 D (gas)
Hazards
MSDS External MSDS
EU classification Corrosive (C)
NFPA 704
Flash point 43 °C
R-phrases ,
S-phrases , , ,
U.S. Permissible
exposure limit (PEL)
10 ppm
Supplementary data page
Structure
& properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related carboxylic
acids
Formic acid
Propionic acid
Butyric acid
Related compounds Acetamide
Ethyl acetate
Acetyl chloride
Acetic anhydride
Acetonitrile
Acetaldehyde
Ethanol
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Chemical infobox
Acetic acid, also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell. Pure water-free acetic acid (glacial acetic acid) is a colourless hygroscopic liquid and freezes below 16.7 °C (62 °F) to a colourless crystalline solid. Acetic acid is corrosive, and its vapour is irritating to eyes and nose, although it is a weak acid based on its ability to dissociate in aqueous solutions.

Acetic acid is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical that is used in the production of polyethylene terephthalate mainly in soft drink bottles; cellulose acetate, mainly for photographic film; and polyvinyl acetate for wood glue, as well as many 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.

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 feedstocks or from biological sources.

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drown me in some acetic acid anyone...i'm sick of chem..!
vishnulivemusic (vishnu m nair) Sun, 03 Jan 2010 16:14:51 -0000
drown me in some acetic acid anyone...i'm sick of chem..!
Raided the gherkin jar...at least its not a cookie jar. That would be calorie hell. My stomach acid telling me it dislikes acetic acid.
LauraKBurgess (Laura Burgess) Sat, 02 Jan 2010 19:54:02 -0000
Raided the gherkin jar...at least its not a cookie jar. That would be calorie hell. My stomach acid telling me it dislikes acetic acid.
Sexy RT @franklanzkie vagina juice = water, pyridine, urea, acetic acid, lactic acid, complex alcohols glycols, ketones, & aldehydes. ...
radseed (melz) Sat, 02 Jan 2010 06:50:59 -0000
Sexy RT @franklanzkie vagina juice = water, pyridine, urea, acetic acid, lactic acid, complex alcohols glycols, ketones, & aldehydes. ...
RT @Student_Doctor the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid, complex alcohols, glycols, ketones & aldehydes.
j_Sicka (Jessica Tangar) Sat, 02 Jan 2010 06:49:08 -0000
RT @Student_Doctor the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid, complex alcohols, glycols, ketones & aldehydes.
This makes me think twice bout eating the pie RT @SinnamonS: the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid etc
datraumatic1 (Trauma) Sat, 02 Jan 2010 06:48:39 -0000
This makes me think twice bout eating the pie RT @SinnamonS: the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid etc
RT @SinnamonS the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid, complex alcohols, glycols, ketones & aldehydes. (via @S
tonytone401 (anthony e) Sat, 02 Jan 2010 06:46:47 -0000
RT @SinnamonS the vagina fluid contains water,pyridine,urea,acetic acid,lactic acid, complex alcohols, glycols, ketones & aldehydes. (via @S

 
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