2 4-Difluorobiphenyl（CAS# 37847-52-2)
| Risk Codes | R36/37/38 – Irritating to eyes, respiratory system and skin. R50/53 – Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R41 – Risk of serious damage to eyes R37/38 – Irritating to respiratory system and skin. R22 – Harmful if swallowed |
| Safety Description | S20/21 - S24/25 – Avoid contact with skin and eyes. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. S60 – This material and its container must be disposed of as hazardous waste. S39 – Wear eye / face protection. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| Hazard Note | Irritant |
| Hazard Class | 9 |
| Packing Group | II |
Introduction
2,4-Difluorobiphenyl. The following is an introduction to the properties, uses, preparation methods and safety information of 2,4-difluorobiphenyl:
Quality:
Appearance: 2,4-difluorobiphenyl is colorless crystals or white powder.
It is insoluble in water at room temperature, but can be soluble in organic solvents such as ethanol, ether, etc.
2,4-Difluorobiphenyl is a stable compound that is not susceptible to heat and light.
Use:
2,4-Difluorobiphenyl is mainly used as an important intermediate in organic synthesis.
In some organic optoelectronic devices, 2,4-difluorobiphenyl is also used as a material for devices such as organic light-emitting diodes (OLEDs).
Method:
2,4-Difluorobiphenyl can be prepared by the reaction of phenylacetylene and hydrogen fluoride. Phenylacetylene is first reacted with hydrogen fluoride to form 2,4-difluorobiphenyl, and then the target product is obtained through appropriate purification steps.
In the preparation process, attention should be paid to the control of operating temperature, the measurement of reactants and the reaction conditions to ensure safety and product quality.
Safety Information:
2,4-Difluorobiphenyl is a low-toxicity compound, but it still needs to be handled safely. Personal protective equipment such as protective gloves, goggles, and gowns should be worn when using or coming into contact with 2,4-difluorobiphenyl.
Avoid contact with the skin, eyes and respiratory tract of 2,4-difluorobiphenyl, and rinse with plenty of water in case of accidental contact. If you experience persistent discomfort, you should seek medical attention promptly.
During storage and transportation, 2,4-difluorobiphenyl should be kept sealed to avoid contact with substances such as oxidants and strong acids/bases.
