108-05-4
Vinyl acetate
CAS: 108-05-4
Molecular Formula: C4H6O2
108-05-4 - Names and Identifiers
| Name | Vinyl acetate |
| Synonyms | Vinyl acetate ethenyl acetate Acetic acid vinyl Acetic acid vinyl ester Vinyl acetate,Acetoxyethylene Vinyl acetate solution,Acetoxyethylene, VINYL ACETATE (STABILISED) FOR SYNTHESIS |
| CAS | 108-05-4 |
| EINECS | 203-545-4 |
| InChI | InChI=1/C4H6O2/c1-3-6-4(2)5/h3H,1H2,2H3 |
108-05-4 - Physico-chemical Properties
| Molecular Formula | C4H6O2 |
| Molar Mass | 86.09 |
| Density | 0.934 g/mL at 25 °C (lit.) |
| Melting Point | -93 °C (lit.) |
| Boling Point | 72-73 °C (lit.) |
| Flash Point | 20°F |
| Water Solubility | 23 g/L (20 ºC) |
| Solubility | 20g/l |
| Vapor Presure | 88 mm Hg ( 20 °C) |
| Vapor Density | 3 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless to almost colorless |
| Exposure Limit | NIOSH REL: 15-min ceiling 4 ppm (15 mg/m3); ACGIH TLV: TWA 10 ppm,STEL 15 ppm (adopted). |
| Merck | 14,9992 |
| BRN | 1209327 |
| PH | 7 (20g/l, H2O, 20℃) |
| Storage Condition | 2-8°C |
| Stability | Stable. Highly flammable. Incompatible with acids, bases, oxidizing agents, peroxides, chlorosulfonic acid, ethylene imine, hydrochloric acid, oleum, nitric acid, sulfuric acid, 2-aminoethanol, light. |
| Sensitive | Light Sensitive |
| Explosive Limit | 2.6-13.4%(V) |
| Refractive Index | n20/D 1.395(lit.) |
| Physical and Chemical Properties | Colorless flammable liquid with sweet ether flavor. melting point -93.2 ℃ boiling point 72.2 ℃ relative density 0.9317 refractive index 1.3953 flash point -1 ℃ solubility miscibility with ethanol, soluble in ether, acetone, chloroform, carbon tetrachloride and other organic solvents, insoluble in water. |
| Use | For the production of polyvinyl alcohol, coatings and adhesives |
108-05-4 - Risk and Safety
| Risk Codes | R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36 - Irritating to the eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system R20 - Harmful by inhalation |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S7 - Keep container tightly closed. S9 - Keep container in a well-ventilated place. |
| UN IDs | UN 1301 3/PG 2 |
| WGK Germany | 2 |
| RTECS | AK0875000 |
| TSCA | Yes |
| HS Code | 29153200 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 2.92 g/kg (Smyth, Carpenter) |
108-05-4 - Upstream Downstream Industry
| Raw Materials | Vinyl acetate |
| Downstream Products | Poly(vinyl acetate) Poly(vinyl alcohol) |
108-05-4 - Nature
A colorless flammable liquid with a sweet ether aroma. Relative density (di8) 0.9317. Melting Point -93,2 °c. Boiling point 72.2 °c. Flash point (Open Cup)-1 °c. Refractive index 1.3953. Miscible with ethanol, soluble in ether, acetone, chloroform, carbon tetrachloride and other organic solvents, insoluble in water. Easy to polymerize.
Last Update：2024-04-10 20:40:14
108-05-4 - Preparation Method
Open Data Verified Data
There are several different raw materials such as acetylene method, ethylene method, acetaldehyde acetic anhydride and so on. Ethylene raw material route according to different process and ethylene gas phase method, ethylene liquid phase method and other different methods.
- The acetylene method uses zinc acetate supported on activated carbon as a catalyst, and acetylene is reacted with acetic acid at 170 to 230 ° C. Under normal pressure. The reaction product was purified vinyl acetate by powder separation, gas separation, aldehyde removal, crude distillation and distillation.
- ethylene gas phase method ethylene, oxygen and acetic acid in the presence of palladium gold (or platinum) catalyst, at 160~180 ℃,
- ethylene liquid phase method ethylene and acetic acid are reacted with palladium chloride and copper chloride as a catalyst to obtain vinyl acetate.
- acetaldehyde acetic anhydride method using acetaldehyde acetic anhydride as raw material, the first synthesis of ethylene diacetic acid, and then deacetic acid reaction, by one step or two step synthesis.
Last Update：2022-01-01 10:32:43
108-05-4 - Use
It is mainly used as a raw material for producing a synthetic fiber vinylon, and is also a component of various copolymer resins such as EVA. Polymers of vinyl acetate-Polyvinyl Acetate Derivatives and polyvinyl alcohol are widely used as adhesives, architectural coatings, textile sizing and finishing agents, paper reinforcing agents, and in the manufacture of safety glass.
Last Update：2024-04-10 20:41:12
108-05-4 - Safety
Open Data Verified Data
- the toxicity of vinyl acetate was low, and the oral LD50 of rats was 2920mg/kg. There are narcotic and stimulating effects, high concentrations of vapor can cause nasal inflammation, red eyes appear. Long-term contact with the skin may produce dermatitis.
- The operating site should be well ventilated, and the operators should be equipped with protective equipment. Immediately after skin contact, wash with soap and water and apply emollients.
- iron drum packaging or tank car in bulk. Storage should be cool and ventilated, fire, sun protection, according to the provisions of flammable and toxic substances storage and transportation.
Last Update：2022-01-01 10:32:44
108-05-4 - Reference Information
| Henry's Law Constant | 4.81 (calculated, Howard, 1989) |
| LogP | 0.73 at 20℃ |
| (IARC) carcinogen classification | 2B (Vol. Sup 7, 63) 1995 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | vinyl acetate is the main raw material for the manufacture of synthetic fiber vinylon. Polyvinyl alcohol, vinyl acetate-ethylene copolymer (EVA), vinyl acetate-Vinyl Chloride Copolymer (EVC), vinyl acetate-acrylonitrile fiber can be obtained by self-polymerization of vinyl acetate or copolymerization with monomer, vinyl Acetate-acrylate copolymers, which have important industrial applications, are widely used as binders, architectural coatings, textile sizing and finishing agents, paper reinforcing agents, and in the manufacture of safety glass. Diethyl bromoacetaldehyde acetal was prepared by the reaction of vinyl acetate with ethanol and bromine. This is an intermediate of the drug methimazole. commonly used intermediates for the production of polyvinyl alcohol, coatings and adhesives. used in organic synthesis used in resin fiber synthesis, also used as intermediate and adhesive of oil-based pour point thickening agent |
| production methods | there are acetylene, ethylene, acetaldehyde acetic anhydride and other different raw materials process. Ethylene raw material route according to different process and ethylene gas phase method, ethylene liquid phase method and other different methods. 1. Acetylene method with zinc acetate on activated carbon as catalyst, acetylene and acetic acid at atmospheric pressure and 170-230 ℃. The reaction product was purified vinyl acetate by powder separation, gas separation, aldehyde removal, crude distillation and distillation. 2. Ethylene gas phase method ethylene, oxygen and acetic acid in the presence of palladium-gold (or platinum) catalyst, at 160-180 ℃,<1MPa pressure gas phase reaction to form vinyl acetate, and then separated, refined product. Ethylene Vinyl Acetate was obtained from ethylene and acetic acid by liquid phase reaction using palladium chloride and copper chloride as catalyst. Acetaldehyde acetic anhydride method with acetaldehyde acetic anhydride as raw material, the first synthesis of ethylene diacetic acid, and then deacetic reaction, by one step or two step synthesis. |
| spontaneous combustion temperature | 801 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 20:43:43
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