86-74-8 N-vinyl Carbazole Medical Intermediate For RNX Dye , N-vinyl Carbazole Plastic

Quick Detail:

The substance of flammable, toxic. Have a strong irritant to the skin, make the skin sensitive to light. When high fever, open flame or contact with oxidants, has caused the risk of burning. When burned, release of toxic gases.

Description:

Laboratory preparation method

Amino diphenyl closed-loop dehydrogenation, raw material is ammonia or chlorobenzene. [3] industrial process

Extraction of carbazole from coal tar distillation, then separated; but also by the adjacent benzidine synthesis, then purified by recrystallization with xylene.

(1) synthesis method: to o - two aniline as raw material, by nitrous acid, preparation of 1- phenyl -1, 2, and three 3- benzene triazole, after heating, loss of nitrogen and generate carbazole.

(2) sulfuric acid method: the crude anthracene with chlorobenzene or other solvent, crude anthracene phenanthrene, fluorene and other substances not dissolved and anthracene, carbazole separately, will join the reaction of anthracene and carbazole carbazole sulfuric acid, and sulfuric acid to form sulfuric acid carbazole and anthracene separately, the sulfuric acid carbazole, the filtering, drying to obtain the product.

(3) solvent distillation: the crude anthracene with by-product coking heavy benzene (160~200 ) fraction dissolved phenanthrene, fluorene, separate substances such as anthracene, and carbazole crude anthracene Anthracene and carbazole, the high temperature distillation in a distillation tower, a distillation, available carbazole containing 85%~90% products, the yield of 65%. [5-6]

Physical and chemical properties

Physical property

With the appearance of the characters: colorless monoclinic lamellae, special gas

Carbazole mapping information (5).

The melting point (:244.8 )

Relative density (=1):1.10

Boiling point (:354.8 )

Molecular formula: C12H9N

Molecular weight: 167.20

Main ingredients: pure

Saturation vapor pressure (kPa):53.33/323 C

Solubility: soluble in water, soluble in ethanol, ether, most organic solvents. [1-2] chemical properties

Prohibited mixture: a strong oxidizing agent. [1] toxicological properties

LD50:500 mg/kg (rat oral); 200 mg/kg (oral) [3] (carbazole atlas atlas images from [4])

Edit this paragraph of upstream and downstream products

Upstream raw materials

Tar - > anthracene -- > o amino diphenyl -->10- nitrogen (Miscellaneous) anthracene Anthracene oil anthracene -- > > > > the separation equipment [3] downstream products production

Anthracene -->3- amino -9- ethyl carbazole -- > Fe > pigment 23-->3- nitro -N- ethyl carbazole -->N- ethyl carbazole -->2- hydroxy -N- (4- methoxyphenyl) -11H- benzo [a] carbazole -3- formamide -- > vat blue 43--> sulphur indanthrene blue RNX[3] edit this section preparation method

Laboratory preparation method

Amino diphenyl closed-loop dehydrogenation, raw material is ammonia or chlorobenzene. [3] industrial process

Extraction of carbazole from coal tar distillation, then separated; but also by the adjacent benzidine synthesis, then purified by recrystallization with xylene.

(1) synthesis method: to o - two aniline as raw material, by nitrous acid, preparation of 1- phenyl -1, 2, and three 3- benzene triazole, after heating, loss of nitrogen and generate carbazole.

(2) sulfuric acid method: the crude anthracene with chlorobenzene or other solvent, crude anthracene phenanthrene, fluorene and other substances not dissolved and anthracene, carbazole separately, will join the reaction of anthracene and carbazole carbazole sulfuric acid, and sulfuric acid to form sulfuric acid carbazole and anthracene separately, the sulfuric acid carbazole, the filtering, drying to obtain the product.

(3) solvent distillation: the crude anthracene with by-product coking heavy benzene (160~200 ) fraction dissolved phenanthrene, fluorene, separate substances such as anthracene, and carbazole crude anthracene Anthracene and carbazole, the high temperature distillation in a distillation tower, a distillation, available carbazole containing 85%~90% products, the yield of 65%. Edit this section uses [5-6]

Main uses: intermediate used in sulphur indanthrene blue RNX dye, N- vinyl carbazole plastic, four nitro carbazole carbazole, chlorinated insecticides. [3] carbazole is a kind of heterocyclic compounds containing nitrogen, is one of the components of coal tar in the economic value of the highest, up to 90% of the world's carbazole is obtained from coal tar, carbazole can be used in the production of dyes, pigments, photoconductor, photosensitive materials, special inks, with its production of Yan Liaoyong solid violet RL, widely used in automobile finish and high temperature resistant plastic, has the advantages of high temperature resistant, resistant to ultraviolet light. Dye vulcanized with its production of the fastness index vat blue RNX, hydron blue fine, especially chlorine fastness is excellent, blue varieties of carbazole carbazole carbazole IDM, LR, LB, L3B, black varieties of carbazole black D. It also produces carbazole dioxazine purple, this is a kind of purple pigment, used in paint, printing ink, carbon paper etc.. Carbazole for the production of sulphur indanthrene blue RNX, direct fast blue FFRL, FFGL etc.. Can be made of leather, N- vinyl carbazole plastics, pesticides four nitro carbazole carbazole, chloride, also can be used in the manufacture of the ultraviolet sensitive photographic film. [3] edits this paragraph safety information

Risk summary

 Mr. Amy Zhang

Tel: 86-25-88291959

Contact to this supplier