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Factory Supply 99% purity 2-methylaniline Liquid
Product Overview:
2-methylaniline Liquid is one of the aromatic amine compounds (aromatic amines are compounds consisting of a benzene ring and an amine group). There are three types of isomers: neighboring, intermediate, and pairs of isomers.
2-methylaniline CAS 95-53-4, also known as "o-aminotoluene", is a colorless to light yellow liquid, becomes reddish brown when exposed to air and light, and produces white precipitate when met with formaldehyde. Slightly soluble in water, 2-methylaniline CAS 95-53-4 is soluble in dilute acid, alcohol, ether. Relative density: 1.004(20℃); Melting point: -16.3℃(β-type), -24.4℃(α-type); Boiling point: 199.7℃; Flash point: 85℃; Spontaneous ignition point: 482.2℃; Vapor density: 3.69. 2-methylaniline Raw Materials vapors and air can form explosive mixtures in the air the maximum allowable concentration of 5ppm. 2-methylaniline Raw Materials vapors and air can form explosive mixtures in the air the maximum allowable concentration of 5ppm.
Factory Supply 99% purity 2-methylaniline Liquid Attributes
MF:C7H9N
MW:107.15
EINECS:202-429-0
Specification:99% purity 2-methylaniline Liquid
Sample:2-methylaniline Liquid
Keywords：2-methylaniline
Appearance:colorless Liquid
Storage: Cool Dry Place
Brand: Global ASAP Nutrition Factory
Shelf Life: 2 Years
Test Method: HPLC
Factory Supply 99% purity 2-methylaniline Liquid Details
Dye industry: used to produce azo dyes, sulfur dyes, etc.
Pesticide industry: used to synthesize certain pesticides.
Pharmaceutical industry: used to synthesize certain drugs.
Other industries: used in the production of rubber additives, plastics, resins, etc.
Functions of 2-methylaniline Liquid.
Dye industry:
2-Methylaniline is an important intermediate for synthesizing a variety of dyes, especially playing a key role in the production of azo dyes. Azo dyes are the most widely used class of synthetic dyes, widely used in dyeing textiles, leather, paper, plastics, etc.
For example, it can be used to synthesize dyes such as basic fuchsin.
Pesticide industry:
2-Methylaniline is also used to synthesize certain pesticides as a key intermediate in the pesticide synthesis process.
For example, it can be used to synthesize pesticides such as acetochlor.
Rubber industry:
In the rubber industry, 2-methylaniline can be used as a rubber additive, such as a vulcanization accelerator to improve the performance and service life of rubber.
Other organic synthesis:
2-Methylaniline can also be used to synthesize various other organic compounds, such as pharmaceutical intermediates, fragrances, resins, etc. It can introduce different functional groups through various chemical reactions, such as electrophilic substitution reactions, diazotization reactions, etc., thereby synthesizing compounds with different functions.
Physicochemical Property of 2-methylaniline Liquid
2-methylaniline Liquid is light yellow flammable liquid, turns reddish brown when exposed to air and sunlight. Slightly soluble in water, soluble in ethanol and ether.
production methodprocess of 2-methylaniline Liquid.
1, in dilute acid medium, with o-nitrotoluene and iron powder, water together with heating to produce 2-methylaniline Liquid. 2, o-nitrotoluene and hydrogen preheated in an induction heater, and 2-methylaniline Raw Materials can also be produced by hydrogenation in the presence of a copper catalyst. 3, Toluene in the rhodium - carbon catalyst and sodium amide amination reaction to prepare 2-methylaniline CAS 95-53-4. 4, aniline in iron nitrate and germanium dioxide catalytic effect, and methanol alkylation reaction to prepare o-toluidine finished products.o-Toluidine is produced from o-nitrotoluene by catalytic hydrogenation reduction. Due to the different hydrogenation catalyst, the reaction conditions vary, such as copper catalyst, reaction temperature 260 ° C, can also be used nickel catalyst. Refining method: according to different manufacturing methods, it contains m-toluidine, p-toluidine, nitrotoluene and other impurities. Especially p-toluidine has more content and contains trace water. The refining method is similar to that of aniline, but it is difficult to separate other toluidine by distillation. The crude o-toluidine is therefore first distilled twice, then dissolved in four times the volume of ether, and an equivalent solution of oxalic acid ether is added. The resulting p-toluidine oxalate was removed by filtration, and the resulting o-toluidine oxalate was filtered out after the filtrate was evaporated from the ether. It was recrystallized five times with water containing oxalic acid and then treated with sodium carbonate solution. Free o-toluidine dried with calcium chloride and distilled under reduced pressure three times to obtain 2-methylaniline CAS 95-53-4.
Obtained by reduction of o-nitrotoluene. Reduction reaction can use iron powder as reducing agent, can also be in the presence of copper catalyst at 260-280 ℃ hydrogenation reaction to produce o-toluidine. The content of industrial o-toluidine (total amino content) is above 99%, and the hydrogenation reduction method consumes 1300kg of o-nitrotoluene and 940m3 of hydrogen per ton of product. The preparation method is to produce 2-methylaniline Raw Materials from o-nitrotoluene by catalytic hydrogenation reduction.Due to the different hydrogenation catalysts, the reaction conditions are different, such as copper catalysts, the reaction temperature is 260 ℃, and nickel catalysts can also be used.
