Product
Supplier
Encyclopedia
Inquiry

EN

Home > Encyclopedia > Aniline

Aniline

Aniline structure
  • CAS No:

    62-53-3

  • Formula:

    C6H7N

  • Synonyms:

    Aniline; Aminophen; Anilin; Benzenamine; Benzeneamine; Aminobenzene; Phenylamine

  • China Export:

    From 2018.11 to 2019.11, total export volume of Aniline from China was 198,253,840KG while total export value was $165,632,417. The biggest proportion of exporting volume in the last 12 months was 12.51% in 2019.03.

Request for Quotation

Description

Aniline,C6H5NH2, is slightly soluble in water,miscible in alcohol and ether,and turns yellow to brown in air. Aniline may be made(1) by the reduction, with iron or tin in HCI, of nitrobenzene, and(2) by the amination of chlorobenzene by heating with ammonia to a high temperature corresponding to a pressure of over 200 atmospheres in the presence of a catalyst(a mixture of cuprous chlorideandoxide).Aniline is the end point of reduction of most mononitrogen substituted benzene nuclei,as nitro ben

View AllView Less

Basic Attributes

  • 62-53-3

  • C6H7N

  • 93.12650

  • 93.05780

  • 26.02000

  • 1.85

  • 200-539-3

  • PAYRUJLWNCNPSJ-UHFFFAOYSA-N

  • 1

  • 1

  • 0

Characteristics

  • Colourless liquid

  • 1.022 g/mL at 25°C(lit.)

  • -6.2 °C

  • 184 °C(lit.)

  • 76 °C

  • n20/D 1.586(lit.)

  • H2O: 36 g/L (20 ºC)

  • Storage Room low temperature ventilation drying ,Separate storage with oxidant and food additive

  • Vapour pressure, Pa at 20°C: 40

  • 3.22 (185 °C, vs air)

  • Stable. Incompatible with oxidizing agents, bases, acids, iron and iron salts, zinc, aluminium. Light sensitive. Combustible.

Safety Information

  • II

  • 6.1

  • 2921411000

  • UN 1547 6.1/PG 2

  • 2

  • R23/24/25; R40; R41; R43; R48/23/24/25; R50; R68

  • S26-S27-S36/37/39-S45-S46-S61-S63-S36/37

  • BW6650000

  • T

  • Separated from strong oxidants, strong acids and food and feedstuffs. Well closed. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

  • P201-P261-P273-P280-P301 + P310 + P330

  • H301 + H311 + H331-H317-H318-H341-H351-H372-H410

  • Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.

  • vol% in air: 1.21.0

  • LD50 orally in rats: 0.44 g/kg (Jacobson)

Usage

Aniline is a toxic organic compound with the formula C6H5NH2. Consisting of a phenyl group attached to an amino group, aniline is the prototypical aromatic amine. Its main use is in the manufacture of precursors to polyurethane and other industrial chemicals. Like most volatile amines, it possesses the odor of rotten fish. It ignites readily, burning with a smoky flame characteristic of aromatic compounds.

View AllView Less

Production Methods

1. The old process is iron powder reduction method: reduction of nitrobenzene with iron powder, neutralize reaction liquid after washing and distillation to be finished.
2. Nitrobenzene hydrogenation reduction method: Nitrobenzene in the presence of copper catalyst in the fluidized bed reactor for gas-phase hydrogenation reduction, the reaction product by condensation, vacuum distillation to get the product.
3. Nitrobenzene catalytic hydrogenation: usually used catalyst for the Cu-SiO2, the catalyst selectivity, can be successfully reduced nitrobenzene into aniline, not easy to produce benzene nucleus hydrogenation. The reaction is carried out in a fluidized bed reactor, the hydrogen is purified and heated to 350-400℃ by a heater, and then enters the evaporator. At the same time, the nitrobenzene enters the evaporator from the high-level tank, contacts the hot hydrogen gas, And overheated to 180 ~ 223℃, the mixed gas from the bottom of the fluidized bed into the fluidized bed loaded on silica gel on the catalyst in contact with the reaction, the resulting crude aniline and water vapor from the top of the bed. Crude aniline by the condenser cooling, separation, and then by distillation of finished aniline. Now the production of aniline has been achieved a continuous reduction reaction in the atmospheric reflux under boiling conditions, to achieve a small equipment large-scale production. Purification method: aniline according to different preparation methods may contain nitrobenzene, toluidine, benzene, sulfide and other impurities. If aniline dissolved in dilute hydrochloric acid to be colorless and transparent liquid, then generally do not contain hydrocarbons and nitrobenzene. When aniline is dissolved in dilute hydrochloric acid or dilute sulfuric acid, if there is an insoluble matter, it is distilled off by steam distillation, and sodium hydroxide is added to the residue to make basic, and aniline can be obtained by steam distillation again. The distilled aniline is dried with solid sodium hydroxide, and the zinc powder is boiled and refluxed, followed by distillation. Dried with solid sodium hydroxide, and then distilled under reduced pressure in a nitrogen stream to obtain a high-purity product. Aniline can also be converted into its derivatives, such as aniline hydrochloride, acetanilide, and then recrystallization refining.
4. Nitrobenzene, ferrous chloride solution (or ammonium chloride solution) and broken iron powder into the reactor, stirring constantly, the get it by reduct reaction. Or by hydrogen reduction of nitrobenzene.
5. Direct access to industrial aniline as raw materials in nitrogen atmosphere, the same distillation can also be finished reagent. The finished product shall be stored in a sealed brown bottle. In order to prepare chromatographic pure aniline, nitrogen can be used as the carrier gas, and the industrial aniline is injected into the preparative gas chromatograph equipped with Apiezon L or SE30 / white diatomite stationary phase column. The main peak component is separated and collected, Sealed in a vial.
6. Nitrobenzene by catalytic hydrogenation reduction or reduction with iron powder: the resulting aniline with oxalic acid reaction into aniline oxalate, and then purified by alkali treatment, and then in nitrogen atmosphere by distillation to collect 183 ~ 185 ℃ Interstices.
7. Phenol Amination: in the presence of acidic alumina catalyst, with phenol and ammonia at 370 ℃ and 1.6MPa pressure reaction. The raw material of the process is easy to obtain, the production method is simple, the catalyst is inexpensive, the product quality is good, and no gas or large amount of water causing air pollution is produced. The phenol conversion is more than 99% and the yield of aniline is more than 96%. Catalyst stability, no regeneration, but also a diphenylamine production. Therefore, this method is suitable for large-scale continuous production and can produce diphenylamine according to need. But the cost of phenol by the impact of phenol in the supply of adequate and inexpensive, and requires a high quality aniline, less investment when using this law.

View AllView Less

Material

China Aniline Export Data

Data referenced from General Administration of Customs,P.R.China

2018.11-2019.11 China - America  Aniline Export Data

From 2018.11 to 2019.11, total export volume of Aniline from China to America was 9,523,961KG while total export value was $11,555,078. The biggest proportion of exporting volume in the last 12 months was 65.96% in 2019.02.

2018.11-2019.11 China Aniline Export Data

From 2018.11 to 2019.11, total export volume of Aniline from China was 198,253,840KG while total export value was $165,632,417. The biggest proportion of exporting volume in the last 12 months was 12.51% in 2019.03.

2018.11-2019.11 TOP10 Purchasing Countries' Export Data of Chinese Aniline

From 2018.11 to 2019.11, China has exported Aniline to 19 countries in total. Country ranks by import volume from high to low is India, Hungary, Belgium, Spain, America, Japan, Taiwan, Germany, Russia, Indonesia. The highest export volume was China to India, accounting for 20.25% of the total volume of China.

Check Export Data for More Purchasing Countries

Purchasing Country Export Volume(KG) Export Percentage Export Value($)

India

77,581,271

20.25%

64,852,907

Hungary

43,306,937

11.30%

31,832,516

Belgium

40,703,525

10.62%

29,451,357

Spain

12,601,786

3.29%

13,893,310

America

9,523,961

2.49%

11,555,078

Japan

6,500,470

1.70%

6,613,960

Taiwan

4,258,000

1.11%

3,931,855

Germany

1,390,180

0.36%

1,186,665

Russia

833,120

0.22%

704,850

Indonesia

669,820

0.17%

705,765

Korea

187,800

0.05%

210,111

Brazil

186,000

0.05%

180,366

Singapore

182,500

0.05%

191,915

Vietnam

136,730

0.04%

119,582

Latvia

98,540

0.03%

84,940

Pakistan

51,600

0.01%

58,420

Mexico

26,000

0.01%

39,870

Turkey

12,000

0.00%

14,760

South Africa

3,600

0.00%

4,190

Price Analysis

  • 2021-09-21

    Reference price of Aniline is 1750.093USD/MT, down 0.18% from 1753.324USD/MT on 2021-09-20.

  • 2021-09-20

    Reference price of Aniline is 1753.324USD/MT, down 0.05% from 1754.141USD/MT on 2021-09-17.

Scan the QR Code to Share

Suggestions
Email:
Message:
Send Message