Shandong, China
Business Type:
Trading Company
Main Products:
Number of Employees:
4
Year of Establishment:
2015-04-03
Management System Certification:
ISO 9001, ISO 14001
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Service
Sample Available

Direct Black 22, Direct Black, Direct Blue manufacturer / supplier in China, offering Direct Fast Black Gf, Direct Black 22, Basic Red 1, Basic Red 6gdn, Direct Black 19, Direct Black L-3bq, Direct Fast Black, Direct Fast Black FF, Direct Fast Black G, Pergasol Black G and so on.

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Direct Fast Black Gf, Direct Black 22

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Min. Order / Reference FOB Price
100 kg US $1/ kg
Production Capacity: 5000mt/Year
Transport Package: 25kg/Bag
Payment Terms: L/C, T/T, D/P, Paypal
Colour: Black
Appearance: Powder
Usage: Paper, Ink, Leather, Textile
Application Material: Mainly Used for Cotton, Viscose, Wool/Stick,Nylon/
Trademark: HONGWEI

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C.I.Direct Black 22,C.I.35435,CAS 6473-13-8,1083.97,C44H32N13Na3O11S3,Direct Black L-2BG,Direct Black VSF,Direct Fast Black GF,Direct Fast Black GGB,Direct Fast Black VSF,Direct Fast Black VSF 600,Solophenyl Black FGE

Molecular Formula:C44H32N13Na3O11S3

Molecular Weight: 1083.97

CAS Registry Number:6473-13-8

Manufacturing Methods :  5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  (2 Moore) coupled, then double nitriding, and Benzene-1,3-diamine (2 Moore) coupled.

Properties and Applications:   green and black. Blue gray powder. Soluble in water for violet black. The strong sulfuric acid for violet black, dilute black light after brown precipitation; In nitric acid solution for the red light brown in, precipitation. The dye solution to join strong hydrochloric acid have brown light black precipitation; Add thick sodium hydroxide solution for dark blue light red. Mainly used for cotton, viscose, wool/stick,nylon/rayon blended fabric dyeing and printing, also used in leather and paper dyeing.

Direct Fast Black Gf, Direct Black 22

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