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Acetic acid is a colourless liquid or crystal with a sour, vinegar-like odour and is one of the simplest carboxylic acids and is an extensively used chemical reagent. Acetic acid has wide application as a laboratory reagent, in the production of cellulose acetate mainly for photographic film and polyvinyl acetate for wood glue, synthetic fibres, and fabric materials. Acetic acid has also been of large use as a descaling agent and acidity regulator in food industries.
| 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 | n |
| FEMA | 2006 | ACETIC ACID |
| Fp | 104 °F |
| storage temp. | Store below +30°C. |
| solubility | alcohol: miscible(lit.) |
| pka | 4.74(at 25℃) |
| form | Solution |
| color | colorless |
| Specific Gravity | 1.0492 (20℃) |
| 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 |
| biological source | synthetic |
| 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) |
| Exposure limits | TLV-TWA 10 ppm ～25 mg/m3) (ACGIH, OSHA, and MSHA); TLV-STEL 15 ppm (37.5 mg/m3) (ACGIH). |
| Dielectric constant | 4.1（2℃） |
| Stability: | Volatile |
| LogP | -0.170 |
| Surface tension | 26.10mN/m at 298.15K |
| 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 |
| OEB | A |
| OEL | TWA: 10 ppm (25 mg/m3), STEL: 15 ppm (37 mg/m3) |
| 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 |
Product Application of Acetic acid CAS#64-19-7
Acetic acid occurs in vinegar. It is producedin the destructive distillation of wood. Itfinds extensive application in the chemicalindustry. It is used in the manufacture ofcellulose acetate, acetate rayon, and variousacetate and acetyl compounds; as a solventfor gums, oils, and resins; as a food preservative in printing and dyeing; and in organicsynthesis.
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