Aniline CAS# 62-53-3

1. Versatile Chemical Reactivity：Aniline is a vital aromatic amine with reactive amino groups, supporting multiple type reactions including salt forming, alkylation, acylation and diazotization.

2. Broad Synthetic Application Scenarios：It acts as a core intermediate to manufacture benzene derivatives, azo compounds, dyes and other fine chemical goods.

3. Excellent Organic solvent Compatibility：Miscible with TBEE, ether, chloroform and other organic solvents, well adapted for diverse organic synthesis workflows.

4. Significant Industrial Intermediate Value：As one of the most fundamental aromatic amines, aniline boasts stable molecular structure and diverse usability for large scale chemical production.

Product Description

Aniline is the simplest and most important aromatic amine, consisting of a benzene ring with one hydrogen atom replaced by an amino group. It is a colorless, oily, flammable liquid with a characteristic pungent odor.

Aniline is slightly soluble in water but readily dissolves in organic solvents such as ethanol, ether, and chloroform. When exposed to air or sunlight, it gradually turns brown due to oxidation. It can be purified by steam distillation, with a small amount of zinc powder added to minimize oxidation. Sodium borohydride (NaBH₄) may also be used as a stabilizer to prevent oxidative degradation. Its aqueous solution exhibits weakly basic properties.

Aniline readily reacts with acids to form salts. Its amino group can undergo alkylation and acylation, producing various substituted derivatives. Electrophilic substitution reactions mainly occur at the ortho and para positions of the benzene ring. Furthermore, aniline reacts with nitrous acid to form diazonium salts, which are important intermediates in the synthesis of aromatic compounds and azo dyes.

Chemical Properties

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

Product Usage

Aniline has been widely used as an important industrial chemical for many years. Its major applications include the production of polyurethanes and rubber products. It is also used in smaller quantities to manufacture pesticides, such as herbicides, fungicides, and insecticides, as well as defoliants, dyes, antioxidants, antidegradants, and vulcanization accelerators.

Furthermore, aniline is used in various household and industrial products, including stove and shoe polishes, paints, varnishes, and marking inks.

Aniline

Aniline CAS# 62-53-3

Online Consultation

Related Products

Popular articles