N,N-DIMETHYLANILINE

PRODUCT IDENTIFICATION

CAS NO 121-69-7

n,n-DIMETHYLANILINE

EINECS NO. 204-493-5
FORMULA C6H5N(CH3)2
MOL WT. 121.18
H.S. CODE

2921.42

TOXICITY Oral rat LD50: 1410 mg/kg
SYNONYMS Xylidine; N,N-Dimethylbenzenamine; Dimethylphylamine;
DMA; N,N-dimethylaniline; (Dimethylamino)Benzene; N,N-Dimethylbenzenamine; ; Dwumetyloanilina (Polish);

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Pale Yellow to brown, oily liquid, Amine-like odor
MELTING POINT 2.45 C
BOILING POINT 193 - 195 C
SPECIFIC GRAVITY

0.956

SOLUBILITY IN WATER Negligible
pH weak base
VAPOR DENSITY 4.17

AUTOIGNITION

371 C

NFPA RATINGS

Health: 3 Flammability: 2 Reactivity: 0

REFRACTIVE INDEX

1.5580
FLASH POINT

63

STABILITY Stable under ordinary conditions

APPLICATIONS

Aromatic amines are much weaker bases than the aliphatics. One of the most important aromatic amines is aniline, a primary aromatic amine replacing one hydrogen atom of a benzene molecule with an amino group. It is a pale brown liquid at room temperature; boiling at 184 C, melting at -6 C; slightly soluble in water and freely soluble in ether and alcohol. It causes serious industrial poisoning.  The substance may have effects on the blood, resulting in formation of methaemoglobin. Repeated or prolonged exposures may be carcinogenic. Commercial aniline is obtained from nitrobenzene which is prepared from benzene with nitric acid by electrophilic substitution reaction or from chlorobenzene by heating  with ammonia in the presence of copper catalyst. It is also obtained as a by-product of coal tar. In commerce the term of aniline oil blue refers to the pure one while aniline oil red indicates a mixture of aniline and toluidines with equimolecular weights. Aniline is the starting material in the dye manufacturing industry. It forms aniline colors when combined with other substances, particularly chlorine or chlorates. Aromatic amines are weaker bases reacting with strong acids to form amides. Anilide is an amide derived from aniline by substitution of an acyl group for the hydrogen of NH2.  Acetanilide is from acetic acid and aniline. Aniline is converted into sulfanilic acid which is the parent compound of the sulfa drugs. Aniline is also important in the manufacture of rubber-processing chemicals, explosives, plastics, antioxidants and varnishes. Amines take part in many kinds of chemical reactions and offer many industrial applications. N,N-Dimethylaniline is used as an intermediate to manufacture dyes, vanillin, tetramethyldiaminobenzophenone (white to greenish solid used as important intermediate for making dyes, pigments and photosensitizers) and other organic products. It is also used as a stabilizer for colorimetric peroxidase determination.
SALES SPECIFICATION

APPEARANCE

Pale Yellow to brown oily liquid, amine-like odor
PURITY

99.5% min

ORGANIC IMPURITY

0.4% max

SETTING POINT

2 C

MOISTURE

0.1% max
TRANSPORTATION
PACKING 180 Kg in Drum
HAZARD CLASS 6.1 (Packing group: II)
UN NO. 2253
OTHER INFORMATION

N,N-Dimethylaniline decomposes on heating or on burning producing highly toxic fumes  of aniline, nitrogen oxides. This compound is  a weak base. It will reacts with oxidants. Its color turns to darken on exposure to air and light.

PRICE INFORMATION
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