Also known as dimethylaniline, colorless to light yellow oily liquid, irritating odor, in the air or under the sun easy oxidation use Ze become deep. Relative density (20℃/4℃) 0.9555, freezing point 2.0℃, boiling point 193℃, flash point (opening) 77℃, ignition point 317℃, viscosity (25℃) 1.528 MPa ·s, refractive index (N20D) 1.5584. Soluble in ethanol, ether, chloroform, benzene and other organic solvents. Can dissolve a variety of organic compounds. Slightly soluble in water. Flammable, will burn in open fire, steam and air to form an explosive mixture, explosive limit of 1.2%~7.0% (vol). High toxicity, high thermal decomposition of the release of toxic aniline gas. Can be absorbed through the skin and toxic, LD501410mg/kg, the maximum allowable concentration in air is 5mg/m3.、

Physical property data
1. Properties: Yellow transparent oily liquid, with pungent ammonia smell.

2. Melting point (℃) : 2.5

3. Boiling point (℃) : 193.1

4. Relative density (water =1) : 0.96

5. Relative vapor density (air =1) : 4.17

6. Saturated vapor pressure (kPa) : 0.13 (29.5℃)

7. Combustion heat (kJ/mol) : -4776.5

8. Critical pressure (MPa) : 3.63

9. Octanol/water partition coefficient: 2.31

10. Flash point (℃) : 62 (CC)

11. Ignition temperature (℃) : 371

12. Explosion upper limit (%) : 7.0

13. Lower explosion limit (%) : 1.0

14. Solubility: insoluble in water, soluble in ethanol, ether, chloroform, acetone, benzene and other organic solvents.

15. Viscosity (MPa ·s,25 ° C) : 1.528

16. Flame point (° C) : 371

17. Heat of evaporation (kJ /kg,476.66K) : 45.2

18. Heat of fusion (kJ /kg) : 97.5

Heat of formation (kJ /mol, liquid) : 34.3

20. Combustion heat (kJ /mol,20 ° C) : 4784.3

21. Combustion heat (kJ /mol,25 ° C, calculated value) : 4757.5

22. Specific heat capacity (kJ /(kg·K),18~64.5 ° C, constant pressure) : 1.88

23. Boiling point constant: 4.84

24. Conductivity (S/ M,20 ° C) : 2.1×10-8

25. Thermal conductivity (W/(m·K),20 ° C) : 0.143

26. Volume expansion coefficient (K-1) : 0.000854

Storage method
1. Storage precautions Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Keep the container tightly closed. It should be stored separately from acids, halogens, and edible chemicals, and avoid mixed storage. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with leakage emergency treatment equipment and suitable storage materials.

2. Sealed and packed in iron drums, 180kg per drum. Store in a cool and ventilated place. Store and transport in accordance with regulations for flammable and toxic substances.

The main purpose
1. One of the basic raw materials for the production of salt base dyes (triphenyl methane dyes, etc.) and basic dyes, the main varieties are alkaline bright yellow, alkaline purple 5GN, alkaline green, alkaline lake blue, brilliant red 5GN, brilliant blue, etc. N, N-dimethylaniline in the pharmaceutical industry for the manufacture of cephalosporin V, sulfamilamide B-methoxymidine, sulfamilamide dimethoxymidine, fluorouracil, etc., in the fragrance industry for the manufacture of vanillin, etc.

2. Used as a solvent, metal preservative, curing agent of epoxy resin, curing accelerator of polyester resin, catalyst for the polymerization of ethylene compounds, etc. It is also used in the preparation of basic triphenyl methane dyes, azo dyes and vanillin.

3. This product is used as a catalyst for making polyurethane foam plastics with organic tin compounds. Also used as rubber vulcanization accelerator, explosives, pharmaceutical raw materials. It is one of the basic raw materials for the production of base-based dyes (triphenyl methane dyes, etc.) and basic dyes. The main varieties are basic bright yellow, basic purple BN, basic green, basic lake blue, brilliant red 5GN, brilliant blue, etc. N, N-dimethylaniline in the pharmaceutical industry for the manufacture of cephalosporin V, sulfamilamide N- methoxymidine, sulfamilamide – dimethoxymidine, fluorouracil, etc., in the fragrance industry for the manufacture of vanillin, etc.

4. Used as curing accelerator of epoxy resin, polyester resin and anaerobic adhesive, so that the anaerobic adhesive can be cured quickly. It can also be used as a solvent, a catalyst for the polymerization of ethylene compounds, a metal preservative, an ultraviolet absorber for cosmetics, a light sensitizer, etc. Also used in the manufacture of basic dyes, disperse dyes, acid dyes, oil soluble dyes and spices (vanillin) and other raw materials.

5. Reagent used for photometric determination of nitrite. It is also used as a solvent and in organic synthesis.

6. Used as dye intermediate, solvent, stabilizer, analytical reagent.