1,8-Diaminonaphthalene

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1, 8-diaminonaphthalene, also known as 1, 8-naphthalene diamine, 1, 8-naphthalene dimethylamine, is an organic compound, the molecular formula is C10H10N2, is a brown-red solid, soluble in ethanol, ether, chloroform, slightly soluble in water, easy to be oxidized.The preparation process of 1, 8-diaminonaphthalene is to synthesize dinitronaphthalene through nitration, thus obtaining a higher yield and a higher purity of 1, 8-dinitronaphthalene, as the raw material for the next step of the reaction, and then 1, 8-dinitronaphthalene catalytic hydrogenation synthesis, 1, 8-diaminonaphthalene, improve its yield and selectivity.

1, 8-diaminonaphthalene is mainly used AS an intermediate in the synthesis of dyes. It is widely used in the synthesis of black oil-soluble dyes, ci. solvent red (135#), solvent orange (60#), etc. These dyes play an important role in the coloring of PS, AS, ABS, hard PVC, PET and other substances.In addition, 1, 8-diaminonaphthalene can also be used as a colorimetric reagent. 1, 8-diaminonaphthalene and selenite interact with each other in a certain PH range. Then, toluene is used to quantitatively extract the colored substances generated in aqueous solution.

In recent years, the output of 1, 8-diaminonaphthalene has been declining in China.On the other hand, in recent years, the development of domestic 1, 8-diaminonaphthalene downstream dye market slowed down, resulting in its demand.

Hebei yanxi chemical co., ltd is a professional research and development of the production of lead acetate, 2-phenylethylamide enterprises.under the innovation in traditional production equipment and technology, the use of "high temperature cooling" and "plastic basin crystallization" technology, on the basis of reducing the cost of products to make the quality of products to the same industry. Under the close supervision of the quality inspection department of the company, we carry out production and sales in the way of "labeling", providing the most convenient and fastest service for users all over the world.

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