Name | 2,4-Dimethylaniline |
Synonyms | 2,4-Xylidine 2,4-Dimethylaniline 2,4-Dimethyl Aniline |
CAS | 95-68-1 |
EINECS | 202-440-0 |
Molecular Formula | C8H11N |
Molar Mass | 121.18 |
Density | 0.975g/cm3 |
Melting Point | 16℃ |
Boling Point | 214.7°C at 760 mmHg |
Flash Point | 90.6°C |
Water Solubility | 5 g/L (20℃) |
Vapor Presure | 0.154mmHg at 25°C |
Vapor Density | 4.2 (vs air) |
Appearance | Morphological Liquid |
Color | Clear yellow to red-brown |
Odor | Amine like |
Merck | 14,10084 |
pKa | pK1:4.89(+1) (25°C) |
PH | 7 (22g/l, H2O, 20℃) |
Storage Condition | room temp |
Stability | Stable. Combustible. Incompatible with strong oxidizing agents, acids, acid anhydrides, acid chlorides, chloroformates, halogens. |
Explosive Limit | 1.1-7.0%(V) |
Refractive Index | 1.559 |
Physical and Chemical Properties | Density 0.98 melting point 16°C boiling point 218°C refractive index 1.558-1.56 flash point 90°C water-soluble 5g/L (20°C) |
Use | Intermediates for pesticides, pharmaceuticals, and dyes |
Hazard Symbols | T - Toxic N - Dangerous for the environment |
Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R33 - Danger of cumulative effects R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 1711 |
WGK Germany | 2 |
RTECS | ZE8925000 |
FLUKA BRAND F CODES | 8 |
TSCA | Yes |
HS Code | 29214910 |
Hazard Class | 6.1 |
Packing Group | II |
Solubility | 5g/l |
BRN | 636243 |
NIST chemical information | Benzenamine, 2,4-dimethyl-(95-68-1) |
(IARC) Carcinogen Classification | 3 (Vol. 16, Sup 7) 1987 |
EPA chemical information | 2,4-Dimethylaniline (95-68-1) |
chemical properties
Colorless oily liquid. The color becomes darker in light and air. Slightly soluble in water, soluble in ethanol, ether, benzene and acid solutions.
Use
2, 4-dimethylaniline is an intermediate for the synthesis of insecticidal and acaricide monoformamidine and amitraz, and can also be used to make azo dyes.
An important intermediate of azo dyes, it can be used to prepare latex colorants, and can also be used in organic synthesis and drug manufacturing.
Production method
2, 4-dimethylaniline is from m-xylene through nitration to obtain 2, 4-dimethylnitrobenzene and 2, 6-dimethylnitrobenzene. After rectification, 2, 4-dimethylnitrobenzene undergoes catalytic hydrogenation and reduction to obtain products.
category
Toxic substances
Toxicity classification
Highly toxic
Acute toxicity
oral-rat LD50: 467 mg/kg; Oral-mouse LD50: 250 mg/kg
flammability hazard characteristics
Open flame is combustible; it works with oxidant; high heat decomposes toxic nitrogen oxide smoke
storage and transportation features
The warehouse is ventilated and dry at low temperature; stored separately from acids, oxidants, and food additives
Fire extinguishing agent
Foam, carbon dioxide, dry powder, sand
auto-ignition temperature | 860 °F |
toxic substance data | 95-68-1(Hazardous Substances Data) |