Hazard Overview

Health hazards: It has an anesthetic effect on the central nervous system; Has a special selective effect on the optic nerve and retina, causing lesions; May cause metabolic acidosis. Acute poisoning: Mild eye and upper respiratory tract irritation symptoms (gastrointestinal irritation symptoms when taken orally) due to short-term and large inhalation; After a period of incubation, symptoms such as headache, dizziness, fatigue, vertigo, drunkenness, confusion, delirium, and even coma may occur. Optic nerve and retinal lesions can cause blurred vision, diplopia, and in severe cases, blindness. Metabolic acidosis can result in decreased carbon dioxide binding capacity and accelerated breathing. Chronic effects: neurasthenia syndrome, autonomic dysfunction, mucosal irritation, decreased vision, etc. Skin degreasing, dermatitis, etc

Explosive hazard: This product is flammable and irritating

Emergency measures

Skin contact: Remove contaminated clothing and thoroughly rinse the skin with soap and water

Eye contact: Lift the eyelids and rinse with flowing water or saline solution. Seek medical attention

Inhalation: Quickly leave the scene and move to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention

Ingestion: Drink plenty of warm water and induce vomiting. Wash the stomach with clean water or 1% sodium thiosulfate solution. Seek medical attention

Fire protection measures

Hazardous characteristics: Flammable, its vapor can form explosive mixtures with air, and can cause combustion and explosion when exposed to open flames or high heat energy. Chemical reactions or combustion may occur when in contact with oxidants. In a fire scene, heated containers pose a risk of explosion. Its vapor is heavier than air and can spread to a considerable distance at lower levels. It will ignite and reignite when exposed to a source of fire

Harmful combustion products: carbon monoxide, carbon dioxide

Fire extinguishing method: Move the container from the fire scene to an open area as much as possible. Spray water to keep the fire container cool until the fire is extinguished. If the container in the fire has changed color or produced sound from the safety relief device, it must be evacuated immediately. Extinguishing agent: insoluble foam, dry powder, carbon dioxide, sand

Emergency response to leakage

Quickly evacuate personnel from the contaminated area to a safe zone, isolate them, and strictly restrict their entry and exit. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static work clothes. Do not come into direct contact with the leaked material. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches. Minor leakage: Absorb or absorb with sand or other non combustible materials. You can also rinse with a large amount of water, dilute the washing water, and put it into the wastewater system. Massive leakage: Construct embankments or dig pits to contain it. Cover with foam to reduce steam disaster. Transfer to a tanker or dedicated collector using an explosion-proof pump, and recycle or transport to a waste disposal site for disposal

Handling and Storage

Precautions for operation: Closed operation, strengthen ventilation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear filter type gas masks (half face masks), chemical safety goggles, anti-static work clothes, and rubber gloves. Keep away from sources of fire and heat, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent steam leakage into the workplace air. Avoid contact with oxidants, acids, and alkali metals. During filling, the flow rate should be controlled and there should be a grounding device to prevent static electricity accumulation. Equip with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. Empty containers may contain residual harmful substances

Storage precautions: Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 30 ℃. Keep the container sealed. It should be stored separately from oxidants, acids, alkali metals, etc., and avoid mixing storage. Adopt explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and suitable containment materials

Contact control and individual protection

China MAC (mg/m3): 50 Former Soviet Union MAC (mg/m3): 5

Engineering control: The production process is sealed and ventilation is strengthened. Provide safety shower and eye wash equipment

Respiratory protection: When there is a possibility of exposure to its vapors, a filtered gas mask (half face mask) should be worn. It is recommended to wear an air respirator during emergency rescue or evacuation

Eye protection: Wear chemical safety goggles Body protection: Wear anti-static work clothes Hand protection: Wear rubber oil resistant gloves

Other protections: Smoking, eating, and drinking are prohibited at the work site. After work, take a shower and change clothes. Implement pre employment and regular medical examinations

Physical and chemical properties

Appearance and characteristics: Colorless clear liquid, with a pungent odor. Solubility: soluble in water, miscible with most organic solvents such as alcohols and ethers

Melting point (℃): -97.8 Boiling point (℃): 64.8 Flash point (℃): 11 Relative density (water=1): 0.79

Relative vapor density (air=1): 1.1 explosion limit% (V/V): 5.5~44.0

Combustion heat (kJ/mol): 727.0 critical temperature (℃): 240 critical pressure (MPa): 7.95 ignition temperature (℃): 385

Main use: mainly used for making formaldehyde, essence, dye, medicine, gunpowder, antifreeze, etc

Prohibited compounds: acids, anhydrides, strong oxidants, alkali metals

Toxicological data

LD50: 5628 mg/kg (oral administration in rats); 15800 mg/kg (rabbit transdermal) LC50: 83776mg/m3, 4 hours (rat inhalation)

Transportation information

Packaging method: Small opening steel drum; Ordinary wooden box outside the ampoule bottle; Screw mouth glass bottle, iron cap pressed mouth glass bottle, plastic bottle or metal barrel (can), ordinary wooden box outside

Transportation precautions: The railway transportation of this product is limited to the use of self provided tank trucks by steel enterprises, and approval from relevant departments is required before shipment. Transport vehicles should be equipped with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks during transportation. It is best to transport in the morning and evening during summer. The tank truck used for transportation should have a grounding chain, and a perforated partition can be installed inside the tank to reduce static electricity generated by vibration. It is strictly prohibited to mix and transport with oxidants, acids, alkali metals, edible chemicals, etc. During transportation, it should be protected from direct sunlight, rain, and high temperatures. When stopping midway, one should stay away from sources of fire, heat, and high temperature areas. The exhaust pipe of the vehicle carrying the item must be equipped with a flame retardant device, and the use of mechanical equipment and tools that are prone to generating sparks for loading and unloading is prohibited. When transporting by road, follow the prescribed route and do not stay in residential or densely populated areas. It is prohibited to slip during railway transportation. It is strictly prohibited to use wooden boats or cement boats for bulk transportation