Aniline, also known as aminozene, is an organic compound. The chemical formula is C6H7N. It is a colorless oil -shaped liquid. It is heated to 370 ° C to break down, slightly soluble in water, and is easily soluble in organic solvents such as ethanol and ether.

   Aniline is one of the most important amine. It is mainly used for manufacturing dyes, drugs, resin, and can also be used as a rubber sulfide promoter. It can also be used as a black dye. Its derivative methyl orange can be used as an indicator for the fixed pH.

In 2021, the World Health Organization International Cancer Research Agency announced the preliminary reference for the list of carcinogens, and aniline was in the list of 2A carcinogens.

Physical and chemical properties

Density: 1.022g/cm3

Following point: -6.2 ℃

Boiling point: 184 ℃

Flash point: 76 ℃

Refractive index: 1.586 (20 ° C)

Saturated vapor pressure: 2.00kPa (25 ° C)

Critical temperature: 425.6 ℃

Critical pressure: 5.30MPa

Condition temperature: 615 ℃

Explosion limit (V/V): 11.0%

Lower limit of explosion (V/V): 1.2%

Appearance: colorless to light yellow transparent liquid

Solubility: slightly soluble in water, soluble in ethanol, ether, benzene

use

Ailine is one of the most important intermediates in the dye industry. It can be used in the dye industry to create acidic ink blue G, acid media BS, acid tender yellow, direct orange S, direct peach red, scattered yellow brown, cationic peach fg and activity Gorgeous red X-SB, etc.; In terms of organic pigments, it is used to make gold and red, golden red G, big red powder, phenoline red, oily black and so on. In the printing and dyeing industry, it is used for dyes of aminerian; in the pesticide industry, it is used to produce many insecticides, bactericides, such as DDV, dehumin ether, toxiccin, etc. Anti -agent, anti -agent RD and aging agent 4010, promoter M, 808, D and CA, etc.; Can also be used as the raw material for medical sulfa drugs, and it is also an intermediate to produce spices, plastics, varnish, film, etc.; Stabilizers in explosives, explosion-proof agents in gasoline, and solvents; can also be used to make phenylphenols, 2-phenyl azine, etc.

Ailine is an important raw material for production of pesticides. It can be derived from N-alkyl anil aniline, alkyl aniline, nitrobiniline, cycamine, etc. , Dibin sulfur sulfur, sulfur sulfur, mycorus, cosphnopatramone, imazolerin acid, etc.

first-aid

Skin contact: Immediately remove the polluted clothing and thoroughly rinse the skin with soapy water and water. Medical.

Eye contact: Raise the eyelids immediately, and rinse it with a large amount of water or physiological saline for at least 15 minutes. Medical.

Inhale: Quickly get out of the scene to fresh air. Keep the respiratory tract open. If breathing is difficult, give oxygen. If breathing stops, perform artificial breathing immediately. Medical.

Eater: Drink enough warm water and vomit. Medical.

Fire-fighting measures

Harm combustion products: carbon monoxide, nitrogen oxidation compounds.

Fire extinguishing method: Firefighters must wear anti -toxic masks, outside the safety distance, the fire extinguish the fire.

Fire extinguishing agent: water, foam, carbon dioxide, sand.

Emergency treatment

Quickly evacuate personnel in the leakage of pollution to the safe area and isolate, and strictly restrict the entry and exit. Cut off the source of the fire. It is recommended that emergency treatment personnel wear self -sufficient positive respirators and anti -poison clothes. Don't directly contact the leak. Try the leak source as much as possible. Prevent restricted space such as inflowing into the sewer and flood ditch.

Small amount leak: adsorb or absorb with sand or other non -burning materials.

Large leakage: Constructing the embankment or digging a pit. Spray -like water or foam cooling and diluted steam, protecting the site personnel. Use the pump to be transferred to the groove car or a special collector, and recycle or transport it to the waste treatment place for disposal.

Operation disposal storage

Operation precautions: closed operation, providing sufficient local exhaust. The operation is as mechanized and automated as possible. The operator must strictly abide by the operating procedures after special training. It is recommended that operators wear filter anti -virus masks (half masks), wear safety protective glasses, wear anti -toxic infiltration work clothes, and wear rubber oil -resistant gloves. Stay away from fire and thermal sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent the vapor leak into the air in the workplace. Avoid contact with oxidants and acids. Due to lightly and lightly remove the packaging and container when moving. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.

Storage precautions: stored in a cool, ventilated warehouse. Stay away from fire and heat. The library temperature does not exceed 30 ° C, and the relative humidity does not exceed 80%. Keep away from light. Packaging is required to be sealed and cannot be contacted with air. It should be stored separately with the oxidant, acid, and edible chemicals, and avoid mixing. Equipped with the appropriate variety and quantity of fire equipment. The storage area should have leakage emergency treatment equipment and suitable containment materials.