Aniline CAS#62-53-3

Aniline CAS#62-53-3

Aniline CAS#62-53-3

Versatile Chemical Reactivity: Aniline is an important aromatic amine with active amino groups, enabling various chemical reactions such as salt formation, alkylation, acylation, and diazotization.


Wide Range of Synthesis Applications: It serves as a key intermediate for producing benzene derivatives, azo compounds, dyes, and other fine chemical products.


Good Organic Solvent Compatibility: Aniline is soluble in ethanol, ether, chloroform, and other organic solvents, making it suitable for various organic synthesis processes.


Important Industrial Chemical Intermediate: As the simplest important aromatic amine, aniline is widely used in chemical manufacturing due to its stable structure and versatile application potential.

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Product Description

Product Description-Aniline CAS#62-53-3


Aniline is the simplest and most important aromatic amine, formed by replacing one hydrogen atom in benzene with an amino group. It is a colorless, oily, flammable liquid with a strong odor.


Aniline is slightly soluble in water but readily dissolves in ethanol, ether, chloroform, and other organic solvents. It gradually turns brown when exposed to air or sunlight. It can be purified by steam distillation, with a small amount of zinc powder added to prevent oxidation; purified aniline may also be stabilized with 10–15 ppm NaBH₄. Its aqueous solution is alkaline.


Aniline easily reacts with acids to form salts. The hydrogen atoms on its amino group can be replaced by alkyl or acyl groups, yielding secondary/tertiary aniline derivatives and acyl anilines. Electrophilic substitution mainly produces ortho- and para-substituted products. Additionally, aniline reacts with nitrite to form diazonium salts, which are key intermediates for synthesizing various benzene derivatives and azo compounds.

Product Applications-Aniline CAS#62-53-3


Aniline has been a key industrial chemical for decades. Today, it is mainly used to produce polyurethanes and rubber products, with smaller volumes going into pesticides (herbicides, fungicides, insecticides, animal repellents), defoliants, dyes, antioxidants, antidegradants, and vulcanization accelerators. It is also found in some household products such as stove and shoe polishes, paints, varnishes, and marking inks.

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Product Data

Chemical Properties-Aniline CAS#62-53-3



Melting point

-6 °C (lit.)

Boiling point

184 °C (lit.)

density

1.022 g/mL at 25 °C (lit.)

vapor density

3.22 (185 °C, vs air)

vapor pressure

0.7 mm Hg ( 25 °C)

refractive index

n20/D 1.586(lit.)

Fp

76 °C

storage temp.

2-8°C

solubility

water: soluble

form

Liquid

pka

4.63(at 25℃)

color

APHA: ≤250

Specific Gravity

1.021

Odor

Sweet, amine-like odor detectable at 0.6 to 10 ppm

Relative polarity

0.42

PH

8.8 (36g/l, H2O, 20℃)

PH Range

8.1

explosive limit

1.2-11%(V)

Water Solubility

36 g/L (20 ºC)

Merck

14659

BRN

605631

Henry's Law Constant

1.91 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999)

Exposure limits

TLV-TWA skin 2 ppm (~8 mg/m3) (ACGIH), 5 ppm (~19 mg/m3) (MSHA, OSHA, and NIOSH); IDLH 100 ppm (NIOSH).

Dielectric constant

7.8(0℃)

Stability:

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

LogP

0.9

CAS DataBase Reference

62-53-3(CAS DataBase Reference)

IARC

2A (Vol. 27, Sup 7, 127)

NIST Chemistry Reference

Aniline(62-53-3)

EPA Substance Registry System

Aniline (62-53-3)

Hazard Codes

T,N,F

Risk Statements

23/24/25-40-41-43-48/23/24/25-50-68-48/20/21/22-39/23/24/25-11

Safety Statements

26-27-36/37/39-45-46-61-63-36/37-16

RIDADR

UN 1547 6.1/PG 2

OEL

TWA: None ppm

WGK Germany

2

RTECS

BW6650000

F

46243

Autoignition Temperature

615 °C

TSCA

Yes

HS Code

2921 41 00

HazardClass

6.1

PackingGroup

II

Hazardous Substances Data

62-53-3(Hazardous Substances Data)

Toxicity

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

IDLA

100 ppm


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