Is formic acid poisonous? What are the hazards?

Formic acid is poisonous. It mainly causes irritation symptoms of skin and mucosa. Contact can cause conjunctivitis, eyelid edema, rhinitis, bronchitis and even acute chemical pneumonia. After oral administration, concentrated formic acid can corrode oral cavity and digestive tract mucosa, causing vomiting, diarrhea and gastrointestinal bleeding, and even death due to acute renal failure or respiratory failure. Skin contact can lead to inflammation and ulcers.

Formic acid is a colorless and transparent fuming liquid with strong pungent sour taste. Its steam and air form an explosive mixture, which will cause combustion and explosion when exposed to open fire and high heat energy. React with strong oxidant. It is very corrosive. When the concentration in water is high, it is harmful to aquatic organisms.

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First aid measures for formic acid:

1. Inhalation: leave the scene quickly and go to a place with fresh air. Keep the respiratory tract unobstructed. If you have difficulty breathing, give oxygen. If breathing stops, give artificial respiration immediately. See a doctor.

2. Eye contact: Lift the eyelid immediately and rinse it thoroughly with plenty of flowing water or normal saline for at least 15 minutes. See a doctor.

3. Skin contact: Take off the contaminated clothes immediately and rinse with plenty of running water for at least 15 minutes. See a doctor.

4, eating by mistake: rinse your mouth with water, give milk or egg white. See a doctor.

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