Product Description
Acetic Acid
EINECS No.: 200-580-7
CAS No.: 64-19-7
Min. Order: 20 Metric Tons
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1. Colorless liquid
2. Organic acid
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Acetic acid (systematically named ethanoic 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.
| food grade Acetic Acid | |
| Other names Ethanoic acid, Vinegar acid, mathane-carboxylic acid |
|
| Identifiers | |
| Abbreviations | AcOH |
| CAS number | 64-19-7 Y |
| PubChem | 176 |
| ChemSpider | 171 Y |
| UNII | Q40Q9N063P Y |
| EC number | 200-580-7 |
| UN number | 2789 |
| DrugBank | DB03166 |
| KEGG | D00010 N |
| MeSH | Acetic+acid |
| ChEBI | CHEBI:15366 Y |
| ChEMBL | CHEMBL539 Y |
| IUPHAR ligand | 1058 |
| RTECS number | AF1225000 |
| ATC code | G01 AD02 , S02 AA10 |
| Beilstein Reference | 506007 |
| Gmelin Reference | 1380 |
| 3DMet | B00009 |
| Properties | |
| Molecular formula | C2H4O2 |
| Molar mass | 60.05 g mol −1 |
| Appearance | Colourless liquid |
| Density | 1.049 g cm -3 |
| Melting point | 16-17 °C, 289-290 K, 61-62 °F |
| Boiling point | 118-119 °C, 391-392 K, 244-246 °F |
| Solubility in water | Miscible |
| log P | -0.322 |
| Acidity (p K a) | 4.792 |
| Basicity (p K b) | 9.198 |
| Viscosity | 1.22 mPa s |
| Dipole moment | 1.74 D |
| Thermochemistry | |
| Std enthalpy of formation Δf H o 298 |
-483.88--483.16 kJ mol -1 |
| Std enthalpy of combustion Δc H o 298 |
-875.50--874.82 kJ mol -1 |
| Standard molar entropy S o 298 |
158.0 J K -1 mol -1 |
| Specific heat capacity , C | 123.1 J K -1 mol -1 |