Description
Acetic acid Chemical 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 | -0.170 |
| 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 | 1-8-10 |
| 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 |
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