What is the function of formic acid?

Formic acid molecular formula of formic acid: CH2O2 molecular weight: 46.03 Part III: Hazard overview-hazard category: invasion route: health hazard: mainly causing skin and mucous membrane irritation symptoms. Contact can cause conjunctivitis, eyelid edema, rhinitis, bronchitis and even acute chemical pneumonia. Concentrated formic acid can corrode oral cavity and digestive tract mucosa after oral administration, causing vomiting, diarrhea and gastrointestinal bleeding. Even died of acute renal failure or respiratory failure. Skin contact can lead to inflammation and ulcers. Occasionally allergic reaction. Environmental hazards: harmful to the environment and polluting the water body. Danger of explosion: This product is flammable, corrosive and irritating, which can cause human body burns. Part iv: first aid measures-skin contact: take off contaminated clothes immediately. Rinse with plenty of running water for at least 15 minutes. See a doctor. 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. 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. Intake: rinse your mouth with water. Drink milk or egg white. See a doctor. Part V: Fire Prevention Measures-Hazard Characteristics: Flammability. Its vapor can form an explosive mixture with air, which can cause combustion and explosion when exposed to open fire and high heat. Contact with strong oxidant will cause chemical reaction. It is highly corrosive. Harmful combustion products: carbon monoxide and carbon dioxide. Fire extinguishing method: Firefighters must wear full-body protective clothing and oxygen respirator to extinguish the fire. Keep the fire container cool with water. And spray water to protect the personnel who have stopped plugging. Extinguishing agent: anti-soluble foam, dry powder and carbon dioxide. Part VI: Emergency treatment of leakage-emergency treatment: evacuate people in the leaked and polluted area to a safe area quickly, isolate them, strictly restrict access and cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirator. Wear acid-proof overalls. Don't touch the leakage directly. Cut off the leakage source as much as possible to prevent it from flowing into closed spaces such as sewers and flood discharge ditches. Small amount of leakage: absorbed or adsorbed by sand or other incombustible materials. You can also sprinkle soda ash on the ground, then wash it with a lot of water, dilute it with washing water and put it into the wastewater system. Large amount of leakage: dike building or pit digging for storage. Cover with foam. Reduce steam disasters. Spray water to cool and dilute the steam. Pump it to a tank car or a special collector, recycle it or transport it to a waste disposal site for treatment. Part VII: Operation, Disposal and Storage-Precautions for operation: seal operation and strengthen ventilation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter gas mask (full face mask), rubber acid and alkali resistant clothing and rubber acid alkali resistant gloves. Stay away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation system and equipment to prevent steam from leaking into the air in the workplace. Avoid contact with oxidant, alkali and active metal powder. When handling, handle with care to prevent the package and container from being damaged. Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances behind. Precautions for storage: Store in a cool and ventilated warehouse. Stay away from fire and heat sources. The temperature in the warehouse must not exceed 30 degrees. The relative humidity should not exceed 85%. Keep the container sealed. Should be stored separately from oxidant, alkali and active metal powder, and should not be mixed. Should be equipped with corresponding varieties and quantities of fire fighting equipment. The storage area shall be equipped with leakage emergency treatment equipment and suitable storage materials. Part VIII: Contact Control/Personal Protection-occupational exposure limits China MAC(mg/m3): former Soviet Union MAC (mg/m3): 65438. Acgih 5ppm, 9.4mg/m3 TLVWN: acgih10ppm, 19mg/m3 Monitoring method: gas chromatography engineering control: the production process is closed, ventilation is strengthened, safety shower and eye washing equipment are equipped, and respiratory protection is provided: when it is possible to contact with its vapor, a self-priming filter gas mask (full face mask) must be worn. Air respirator is recommended for emergency rescue or evacuation. Eye protection: respiratory protection has been provided. Physical protection: wear rubber acid and alkali resistant clothes. Hand protection: Wear rubber acid alkali resistant gloves. Other protection: Smoking and eating are prohibited in the workplace. Take a shower and change clothes after work. Pay attention to personal hygiene. Part IX: Physical and chemical characteristics-. Grade Ⅱ ≥ 85.0%. Colorless transparent fuming liquid with strong pungent sour taste. PH: melting point (℃): 8.2 boiling point (℃): 100.8 relative density (water = 1): 1.23 relative vapor density (air = 1): 1.59 saturated vapor pressure (. : 306.8 critical pressure (MPa): 8.63 log value of n-octanol/water partition coefficient: -0.54 flash point (℃): 68.9 (O.C.) ignition temperature (℃): 4 10 upper explosion limit% (v/v): 57.0 lower explosion limit% (v/v) Soluble in alcohol. Mainly used for manufacturing chemicals, rubber coagulants, textiles, printing and dyeing, electroplating, etc. Other physical and chemical properties: Part X: Stability and reactivity-Stability: Prohibited compounds: strong oxidant, strong alkali and active metal powder. Conditions to avoid contact: polymerization hazards: decomposition products: XI part: toxicological data-acute toxicity: LD50: 65438. Subacute and chronic toxicity of Kg (orally taken by rats) LC50: 15000 mg/m3, 15 min (inhaled by rats): irritation: orally taken by rabbits: 122mg, which is a serious irritation. Percutaneous open stimulation test in rabbits: 6 10mg, mild stimulation. twelfth