2 5-Difluorobenzoic acid（CAS# 2991-28-8)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | 36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 – Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
Introduction
2,5-Difluorobenzoic acid.
Solubility: 2,5-difluorobenzoic acid has low solubility in water and good solubility in organic solvents such as ethanol and dimethylformamide.
Acidic: It is an acidic substance that reacts to form corresponding salts and esters.
2,5-Difluorobenzoic acid has some important applications in industry, including:
Pesticide intermediates: can be used as intermediates in the manufacture of certain pesticides, such as oxalic acid herbicides.
Dye synthesis: A raw material that can be used to synthesize a specific dye.
The method of preparing 2,5-difluorobenzoic acid can generally be carried out by the following steps:
First, two hydrogen atoms in benzoic acid are replaced by fluorine atoms using a fluorinating agent to obtain 2,5-difluorobenzoic acid.
When using or handling 2,5-difluorobenzoic acid, caution should be taken to pay attention to the following safety information:
Avoid inhalation: Prolonged exposure or inhalation of 2,5-difluorobenzoic acid powder or vapor should be avoided to avoid damage to the respiratory tract and lungs.
Eye and skin contact: Rinse immediately with plenty of water if in contact with eyes or skin.
Use of personal protective equipment: Appropriate protective gloves, glasses, and protective clothing should be worn when handling 2,5-difluorobenzoic acid.
Storage Caution: 2,5-difluorobenzoic acid should be stored in a dry, well-ventilated place, avoid contact with combustible substances, and away from fire.
