Acetic acid
CAS Number: 64-19-7
Chemical Formula: C2H4O2
Synonyms:
WIJS CHLORIDE
Natural Acetic Acid
WIJS’ SOLUTION
Appearance: Transparent liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Acetic acid is a colorless liquid or crystalline substance with a sharp, vinegar‑like odor. As one of the simplest carboxylic acids, it serves as a widely applied chemical reagent. It is extensively used as a laboratory reagent, in manufacturing cellulose acetate for photographic film, polyvinyl acetate for wood adhesives, synthetic fibers, and textile materials. It is also widely utilized as a descaling agent and acidity regulator in the food industry.
Acetic acid Chemical Properties
| Property | Value |
| 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.) |
| 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
| Item | Value |
| 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 is naturally present in vinegar. It can be produced via the destructive distillation of wood. It has broad industrial applications. It is used in producing cellulose acetate, acetate rayon, and diverse acetate and acetyl compounds. It acts as a solvent for gums, oils, and resins. It serves as a food preservative and is used in printing and dyeing processes as well as organic synthesis.
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