Hazard Overview

Health hazards: Inhalation can cause irritation to the respiratory tract, leading to coughing, chest pain, and difficulty breathing. Steam is irritating to the eyes. Direct contact between eyes and skin with liquid can cause burns. Oral burns to the mouth and digestive tract, resulting in abdominal pain, nausea, vomiting, and shock. Chronic effects: Workers who are chronically affected by the steam of this product may experience conjunctivitis, photophobia, upper respiratory tract irritation, etc.

Environmental hazards: Harmful to the environment and can cause pollution to water bodies.

Explosive hazard: This product is flammable, corrosive, and irritating, and can cause burns to the human body.

Emergency measures

Skin contact: Immediately remove contaminated clothing and rinse with plenty of flowing water for at least 15 minutes. Seek medical attention.

Eye contact: Immediately lift the eyelids and thoroughly rinse with plenty of flowing water or saline solution for at least 15 minutes. 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: Rinse mouth with water and drink milk or egg whites. 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 can occur when in contact with strong oxidants.

Harmful combustion products: carbon monoxide, carbon dioxide.

Fire extinguishing method: Spray the escaping liquid with water to dilute it into a non flammable mixture, and protect firefighters with misty water. Extinguishing agent: spray water, insoluble foam, dry powder, carbon dioxide.

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 acid and alkali resistant 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: Mix sand, dry lime, or soda ash. Massive leakage: Construct embankments or dig pits to contain it. Spray like water cools and dilutes steam, protects on-site personnel, and dilutes leakage into incombustible materials. 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 self-priming filter type gas masks (full face shields), acid and alkali resistant plastic work clothes, and rubber acid and alkali 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, reducing agents, acids, bases, active metal powders, and alcohols. 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, dry, and well 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, reducing agents, acids, bases, active metal powders, alcohols, etc., and mixed storage should be avoided. 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): No standard established. Former Soviet Union MAC (mg/m3): No standard established

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 self-priming filter type gas mask (full face mask) must be worn. It is recommended to wear an air respirator during emergency rescue or evacuation.

Eye protection: Respiratory protection has been implemented. 

Body protection: Wear acid and alkali resistant plastic work clothes. Hand protection: Wear rubber acid and alkali resistant gloves

Other protections: Smoking, eating, and drinking are prohibited in the workplace, and hands should be washed before meals. After work, take a shower and change clothes. Pay attention to personal hygiene and cleanliness.

Physical and chemical properties

Content: Content: Grade 1 ≥ 98.0%; Level 2 ≥ 95.0%. Appearance and characteristics: Colorless and transparent liquid, with a pungent odor, and its vapor is tear gas.

Solubility: soluble in ethanol, ether, and benzene. Melting point (℃): -73.1 Boiling point (℃): 138.6 Flash point (℃): 49

Heat of combustion (kJ/mol): 1804.5 Explosion upper limit% (V/V): 10.3 Explosion lower limit% (V/V): 2.0 Relative density (water=1): 1.08

The vapor density (air=1) is 3.52, and the saturated vapor pressure (kPa) is 1.33 (36 ℃). Its main uses are as an acetylating agent, as well as in the manufacture of drugs, dyes, and acetate fibers.

Prohibited substances: acids, bases, water, alcohols, strong oxidants, strong reducing agents, active metal powders.

Toxicological data

LD50: 1780 mg/kg (oral administration in rats); 4000 mg/kg (rabbit transdermal); LC50: 4170mg/m3, 4 hours (inhaled by rats)

Transportation information

Packaging method: Small opening aluminum drum; Ordinary wooden box or semi checkered wooden box outside glass bottles or plastic drums (cans); Ordinary wooden box outside frosted or threaded glass bottles; Screw mouth glass bottles, iron cap pressed mouth glass bottles, plastic bottles, or ordinary wooden boxes outside metal drums (cans); Threaded glass bottles, plastic bottles, or tin plated steel drums (cans) are filled with bottom plate flower boxes, fiberboard boxes, or plywood boxes.

Transportation precautions: The packaging should be intact and the loading should be secure during shipment. During transportation, it is necessary to ensure that the container does not leak, collapse, fall, or be damaged. 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, reducing agents, acids, bases, active metal powders, alcohols, edible chemicals, etc. When transporting by road, follow the prescribed route and do not stay in residential or densely populated areas.