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Synthetic dyestuff CAS 128-97-2

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Basic Info

Model No.: X-CAS 128-97-2

Density:: 1.751 G/cm3

CAS:: 128-97-2

Name:: 1,4,5,8-Naphthalenetetracarboxylic Acid

MF:: C14H8O8

MW:: 304.20900

Bp:: 737.9ºC At 760 MmHg

FP:: 414ºC

Additional Info

Packaging: As your request

Productivity: 10000kg per month

Brand: zhishang

Transportation: Ocean,Land,Air

Place of Origin: Shandong, China (Mainland)

Supply Ability: in stock

Certificate: ISO CE

HS Code: 2917399090

Port: Shanghai,Tianjin,Qingdao

Product Description

Synthetic dyestuff CAS 128-97-2

Production method: 1, N-ethyl-m-toluidine reaction of acid-binding agent selected sodium hydroxide solution and sodium carbonate. N-ethyl m-toluidine and benzyl chloride ratio of 1: (0.95 ~ 1.05) (molar ratio), the reaction temperature was successively 40 ℃ and 100 ℃ temperature rise reaction to the end, and then separated by water reduction, the oil layer obtained by distillation under reduced pressure. At least 1000 kg of N-ethyl-m-toluidine can yield 1350 kg of N-ethyl-N-benzyl m-toluidine. 2, m-toluidine method Chloroethane (or ethanol) as alkylating agent N-ethyl m-toluidine, the same method with the previous method to obtain the product.

The product is made of pyrene by chlorination and oxidation. The reaction of acenaphthene and propylene nitrile can be produced by oxidation. In addition, the presence of acenaphthene with carbamyl chloride or dimethyl carbamyl chloride in chlorobenzene was used to produce 5, 6-acenaphthalic acid. Then, the oxidation reaction can also be made to 1,4,5,8- naphthalic acid.

Usage:

This product used in the manufacture of plastics industry has a good insulation and resistance to radiation, and can resistance to high temperature (above 400 ℃), a new type of polymer resin, polyimide and TNM

CAS 128-97-2 Q

Product expansion

1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the Raw Material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories. The former is a class of cosmetics in the main raw materials, cosmetics in the possession of a large proportion of the cosmetics play a major role in the role of the material. The latter is the formation of cosmetics, stability or to give color, smell and other characteristics of the role of these substances in the cosmetic formula is not used, but it is extremely important. Cosmetics are natural, synthetic or extracted from the role of different substances as raw materials, by heating, mixing and emulsification and other production processes processed from the chemical mixture.

2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.It is one substance or mixture during the medicine making period, it can not be taken directly by patients.

3> Fragrance And Spices: Spice is a substance that can be scented by smelling or scented by taste, and is the raw material for the preparation of the fragrance. Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.

4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, pesticides, pharmaceuticals, resins, Additives, and other intermediates.

5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion, usually in resin, or oil, or emulsion is given priority to, add or not add pigment, filler, add the corresponding additives, organic solvents or water preparation of viscous liquid.

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Product Categories : Organic Intermediate > Dyestuff Intermediate

Synthetic dyestuff CAS 128-97-2

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