Hazard Overview

Health hazards: It has a stimulating effect on the eyes, nose, and throat. Inhalation at high concentrations can induce progressive anesthetic effects, acute pulmonary edema, and liver and kidney damage. Continuous inhalation in large quantities can cause respiratory paralysis. Those who ingest it by mistake may experience nausea, vomiting, abdominal pain, diarrhea, etc. Has a sensitizing effect, causing gingival bleeding due to vascular and neurological disorders; May cause eczema like dermatitis. Chronic effects: Long term exposure to this product can sometimes cause corneal opacity, secondary anemia, leukocytosis, etc.

Explosive hazard: This product is flammable, irritating, and allergenic.

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. 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. Reacts violently when in contact with oxidants. 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

Extinguishing method: use insoluble foam, carbon dioxide, dry powder and sand to extinguish the fire. Using water to extinguish the fire is ineffective, but it can be used to keep the container cool in the fire scene.

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. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches. Minor leakage: Absorb with activated carbon or other inert 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, comprehensive ventilation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear self-priming filter type gas masks (half masks), chemical safety goggles, anti-static work clothes, and rubber oil resistant 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 bases. During filling, the flow rate should be controlled and there should be a grounding device to prevent static electricity accumulation. Handle with care during transportation to prevent damage to packaging and containers. 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, and bases, 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): 300 Former Soviet Union MAC (mg/m3): 200

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

Respiratory protection: When there is a possibility of exposure to its vapors, a self-priming filter type 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 is strictly prohibited at the work site. After work, take a shower and change clothes. Pay attention to personal hygiene and cleanliness.

Physical and chemical properties

Main Ingredients: Pure Appearance and Characteristics: Colorless clear liquid, with aromatic odor, easily volatile

Solubility: Slightly soluble in water, soluble in most organic solvents such as alcohols, ketones, ethers, chloroform, etc

Melting point (℃): -83.6 Boiling point (℃): 77.2 Flash point (℃): -4 Saturated vapor pressure (kPa): 13.33 (27 ℃)

Relative density (water=1): 0.90 Relative vapor density (air=1): 3.04 Explosion limit% (V/V): 2.0-11.5

Combustion heat (kJ/mol): 2244.2 Critical temperature (℃): 250.1 Critical pressure (MPa): 3.83 Ignition temperature (℃): 426

Main use: Widely applicable. Mainly used as a solvent, as well as for the synthesis of dyes and some pharmaceutical intermediates.

Prohibited substances: strong oxidants, alkalis, acids

Toxicological data

LD50: 5620 mg/kg (oral administration in rats); 4940 mg/kg (rabbit oral) LC50: 5760 mg/m3, 8 hours (rat inhalation)

Transportation information

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

Transportation precautions: During transportation, the transport vehicle should be equipped with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. 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, alkalis, 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