Cyanoacrylate Adhesive
Cyanoacrylate Adhesive
CAS: 7085-85-0
Molecular Formula: C6H7NO2
Cyanoacrylate Adhesive - Names and Identifiers
| Name | Cyanoacrylate Adhesive |
| Synonyms | 910em ace-ee ace-e50 ace-ee- Cyanoacrylate Adhesive ethyl 2-cyanoprop-2-enoate 2-cyanoacrylicacidethylester 2-cyano-acrylicaciethylester 2-propenoic,2-cyano-,ethylester 2-cyano-2-propenoicaciethylester 2-Propenoicacid,2-cyano-,ethylester |
| CAS | 7085-85-0 |
| EINECS | 230-391-5 |
| InChI | InChI=1/C6H7NO2/c1-3-9-6(8)5(2)4-7/h2-3H2,1H3 |
Cyanoacrylate Adhesive - Physico-chemical Properties
| Molecular Formula | C6H7NO2 |
| Molar Mass | 125.13 |
| Density | 1.04 |
| Melting Point | -20 to -25° |
| Boling Point | bp 54-56° (0.21-0.40 kPa) |
| Flash Point | 85°C |
| Water Solubility | 24μg/L at 20℃ |
| Solubility | Acetontrle (Slightly), Benzene (Slightly), Chloroform (Slightly) |
| Vapor Presure | 21Pa at 20℃ |
| Appearance | liquid |
| Color | Clear colorless to slightly yellow |
| Storage Condition | 2-8°C |
| Stability | Unstable - polymerizes rapidly, especially in the presence of moisture. Combustible. Incompatible with strong oxidizing agents, moisture. |
| Refractive Index | nD20 1.4391 |
Cyanoacrylate Adhesive - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S23 - Do not breathe vapour. |
| WGK Germany | 1 |
| RTECS | UD3330000 |
| HS Code | 29269090 |
Cyanoacrylate Adhesive - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | ethyl cyanoacrylate is an α-cyanoacrylate adhesive. Α-cyanoacrylate adhesive has the characteristics of fast curing, wide range of bonding materials, thin adhesive layer, good transparency and convenient use, so it has been widely used in daily life and industrial adhesive. |
| preparation | preparation method of α-ethyl cyanoacrylate monomer: ① mix 300g of ethyl cyanoacetate with solid formaldehyde or formaldehyde solution in dichloroethane or toluene medium, add hexahydropyridine catalyst, control temperature to 70 ℃ ± 5 ℃, and carry out condensation reaction for 2H, an oligomer of ethyl α-cyanoacrylate was obtained; Wherein the charge of ethyl cyanoacetate and aqueous formaldehyde solution (calculated as formaldehyde) was 1.02:1.00, and the charge of hexahydropyridine was 0.15% by weight based on ethyl cyanoacetate. ② 50g of dioctyl phthalate is added to the oligomer of ethyl α-cyanoacrylate, the solvent is removed at normal pressure or reduced pressure to a pot temperature of 140 ℃, 8g of phosphorus pentoxide and 4g of hydroquinone are added, and the reaction is cracked under reduced pressure at-0.098Mpa, the fraction of 150-200 ° C. Was collected to obtain 290g of crude monomer of ethyl α-cyanoacrylate; ③ the crude monomer of ethyl α-cyanoacrylate obtained in ② was distilled under reduced pressure under the condition of -0.099MPA, 267G of ethyl α-cyanoacrylate monomer product was obtained, and the gas phase detection content was ≥ 99%. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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