Product Description
Acetic acid, also known as AcOH, is named after the main component of vinegar and is one of the most important fatty acids. It naturally occurs in many plants either in free form or as esters. Its molecular formula is CH3COOH.
Vinegar has been brewed and used for thousands of years, with historical records of vinegar production in ancient China. Concentrated acetic acid was first successfully developed by Stahl in 1700.
Pure acetic acid is a colorless liquid with a pungent taste, with a melting point of 16.6°C, boiling point of 117.9°C, and relative density of 1.049 (20/4°C). It is soluble in water, ethanol, glycerol, ether, and carbon tetrachloride, but insoluble in carbon disulfide. Anhydrous acetic acid solidifies into ice at low temperatures, commonly referred to as glacial acetic acid.
It is corrosive and a weak organic acid, exhibiting the general properties of acids and capable of undergoing esterification reactions with alcohols.
Properties
| Melting point | 16.2 °C(lit.) |
| Boiling point | 117-118 °C(lit.) |
| density | 1.049 g/mL at 25 °C(lit.) |
| vapor density | 2.07 (vs air) |
| vapor pressure | 11.4 mm Hg ( 20 °C) |
| refractive index | n20/D 1.371(lit.) |
| FEMA | 2006 | ACETIC ACID |
| Fp | 104 °F |
| storage temp. | Store below +30°C. |
| solubility | alcohol: miscible(lit.) |
| form | Solution |
| pka | 4.74(at 25℃) |
| Specific Gravity | 1.0492 (20℃) |
| color | colorless |
| Odor | Strong, pungent, vinegar-like odor detectable at 0.2 to 1.0 ppm |
| PH | 3.91(1 mM solution);3.39(10 mM solution);2.88(100 mM solution); |
| PH Range | 2.4 (1.0M solution) |
| Odor Threshold | 0.006ppm |
| Odor Type | acidic |
| explosive limit | 4-19.9%(V) |
| Water Solubility | miscible |
| λmax | λ: 260 nm Amax: 0.05 |
| λ: 270 nm Amax: 0.02 | |
| λ: 300 nm Amax: 0.01 | |
| λ: 500 nm Amax: 0.01 | |
| Merck | 14,55 |
| JECFA Number | 81 |
| BRN | 506007 |
| Henry's Law Constant | 133, 122, 6.88, and 1.27 at pH values of 2.13, 3.52, 5.68, and 7.14, respectively (25 °C, Hakuta et al., 1977) |
| Dielectric constant | 4.1（2℃） |
| Exposure limits | TLV-TWA 10 ppm ～25 mg/m3) (ACGIH, OSHA, and MSHA); TLV-STEL 15 ppm (37.5 mg/m3) (ACGIH). |
| Stability: | Volatile |
| LogP | -0.17 |
| CAS DataBase Reference | 64-19-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Acetic acid(64-19-7) |
| EPA Substance Registry System | Acetic acid (64-19-7) |
Safety Information
| Hazard Codes | C,Xi |
| Risk Statements | 34-42-35-10-36/38 |
| Safety Statements | 26-36/37/39-45-23-24/25 |
| RIDADR | UN 1792 8/PG 2 |
| WGK Germany | 3 |
| RTECS | NN1650000 |
| F | 37113 |
| Autoignition Temperature | 426 °C |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29152100 |
| Hazardous Substances Data | 64-19-7(Hazardous Substances Data) |
| Toxicity | LD50 in rats (g/kg): 3.53 orally (Smyth) |
| IDLA | 50 ppm |
Factory Tour
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Package And Shipping
We offer chemical packaging options including drums and bags with reliable transport safeguards. Our warehouse keeps adequate inventory. All products are carefully loaded to ensure safe transit.
