2-Propargyloxane(CAS#6089-04-9)
Risk and Safety
| Risk Codes | 11 – Highly Flammable |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 – Take off immediately all contaminated clothing. S28 – After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S16 – Keep away from sources of ignition. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| HS Code | 29329900 |
| Hazard Class | 3.2 |
| Packing Group | III |
2-Propargyloxane(CAS#6089-04-9) introduction
2-(2-propropoxy)tetrahydropyran. The following is an introduction to the properties, uses, preparation methods, and safety information of the compound:
Quality:
Appearance: Colorless liquid.
Density: 0.887 g/cm³.
Solubility: Soluble in water, alcohol and ether solvents.
Use:
It is also commonly used as a solvent in the polymer industry, e.g. in the preparation of polyacrylamide (PAN) fibers.
Method:
THF can be prepared by the condensation reaction of 1,4-butanediol. 1,4-butanediol is reacted with dilute sulfuric acid or an acidic catalyst to generate 1,4-butadiene; Then, it reacts with acetylene to form 2-(2-propropoxy)tetrahydropyran.
It can also be prepared by the reaction of tetrahydropyran with dimethyl carbonate in the presence of sodium hydroxide.
Safety Information:
May be irritating to the skin and eyes, use personal protective equipment such as gloves and goggles.
It should be stored in a cool, dry place, away from fire and oxidants.
Pay attention to a well-ventilated environment when using it to prevent steam inhalation and cause uncomfortable symptoms.
