CAS number： 1477-55-0
molecular formula：C8H12N2
molecular weight：136.19
EINECS number：216-032-5

English synonyms

LABOTEST-BBLT00053687;1,3-BIS(AMINOMETHYL)BENZENE;1,3-Benzenedimethanamine;ALPHA,ALPHA'-DIAMINO-M-XYLChemicalbookENE;RARECHEMALBW0017;OMEGA,OMEGA'-DIAMINO-M-XYLENE;M-XYLENE-ALPHA,ALPHA'-DIAMINE;M-XYLENE-A,A'-DIAMINE

Related categories

Epoxy resin curing agent; chemical raw materials; analytical grade; pharmaceutical raw materials; organic chemical raw materials; aromatic compounds; organic raw materials; pharmaceutical intermediates; intermediates; organic building blocks; acetone series; rubber and plastic additives; Intermediates of Dyes and Pigments; Acetone series; Rubber & Plastic Auxiliary Agent ;BuildingBlocChemicalbooks;ChemicalSynthesis;NitrogenCompounds;OrganicBuildingBlocks;Polyamines;Universal reagents;Amine;FineChemical;Synthetic material intermediates;Chemical materials;Chemical industry;Amines;Chemical reagents;Organic chemicals;Fine chemicals;Fine chemical raw materials;Chemical raw materials - dyes. Pigment intermediates; organic intermediates

Introduction

Metaxylylenediamine products appear as colorless liquids with an almond smell. It turns yellow in the air after long exposure to dew. The viscosity is similar to that of dibutyl phthalate. Soluble in water and organic solvents.ts.

Chemical properties

●Colorless liquid with almond smell. It turns yellow in the air after long exposure to dew. The relative density is 1.055, the boiling point is 248°C, the refractive index is 1.5700, and the viscosity is similar to dibutyl phthalate. Soluble in water and organic solvents.

Use

●  1,3-Phenylenediamine is mainly used to manufacture high-performance epoxy resin curing agents that are heat-resistant, non-toxic, underwater construction, and rapidly cured by heating. It is a raw material for polyurethane resins and synthetic functional epoxy resins, and is also used in It is also used in rubber additives, photosensitive plastics, pesticides, coatings, nylon products, fiber finishing agents, anti-rust agents, chelating agents, lubricants, paper processing, etc.

●  Used to make epoxy resin curing agents, photosensitive plastics, rubber additives, polyurethane resins and coatings, etc.; mainly used to make high-performance epoxy resin curing agents that are heat-resistant, non-toxic, underwater construction, and quickly cured by heating. They are polyurethane Resin, the raw material for synthetic functional epoxy resin, is also used in rubber additives, photosensitive plastics, pesticides, coatings, nylon products, fiber finishing agents, anti-rust agents, chelating agents, lubricants, paper processing, etc.

●  The special structure of MXDA determines that it has a variety of excellent physical and chemical properties and is widely used. MXDA and its ring hydride can be used as epoxy resin curing agent. It has excellent curing performance at room temperature, good heat resistance, water resistance and chemical corrosion resistance. It can also obtain a transparent and good cured resin with extremely fine surface, low viscosity and easy operation. Good performance. At the same time, MXDA is an important fine chemical intermediate. It can be used to synthesize polyamide with dibasic acid. It can synthesize m-xylene diisocyanate, the monomer of polyurethane. Its benzene ring hydride can also be used to synthesize diisocyanate. It has been used in the synthesis of rubber cross-linking agents, pesticides, fiber stabilizers, surfactants, etc.

Production method

●  The mixture of m- and p-xylene is used as raw material and undergoes ammoxidation reaction with air and ammonia to generate m- and terephthalonitrile. After washing with water and drying, catalytic hydrogenation is carried out in ethanol and potassium hydroxide solvents at a pressure of 4.5MPa and 90°C. The catalyst is removed from the reaction solution, ethanol is recovered, and distilled under reduced pressure to obtain meta- and para-xylylenediamine.

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