1-bromo-2-butyne（CAS# 3355-28-0)
| Risk Codes | 10 – Flammable |
| Safety Description | S16 – Keep away from sources of ignition. S24/25 – Avoid contact with skin and eyes. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29033990 |
| Hazard Class | 3 |
| Packing Group | III |
Introduction
1-Bromo-2-butyne is an organic compound. The following is an introduction to its nature, use, preparation method and safety information:
Properties: 1-Bromo-2-butyne is a colorless to pale yellow liquid with a distinctive odor. It is insoluble in water but can be soluble in organic solvents such as ethers and alcohols. It has a low ignition point and is prone to combustion.
Uses: 1-Bromo-2-butyne is often used as a reagent in organic synthesis reactions. It can be used in the synthesis of various organic compounds such as alkynes, haloalkynes, and organometallic compounds. It can also be used as an organic solvent and polymer additive.
Preparation method: The preparation of 1-bromo-2-butyne is mainly obtained by bromide 2-butyne. Bromine is first added to the ethanol solvent, followed by an alkaline solution to catalyze the reaction. At the right temperature and reaction time, 1-bromo-2-butyne is formed.
Safety Information: 1-Bromo-2-butyne is a dangerous compound and should be handled with care. It is irritating and toxic and can cause damage to the eyes and skin. When in use, protective gloves, goggles and protective clothing should be worn. Operate in a well-ventilated environment and avoid inhaling vapors. In case of accidental ingestion or inhalation, medical assistance should be sought immediately.
