TitleProduct

Direct Black 19

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Tianjin

  • Validity to:

    Long-term effective

  • Last update:

    2020-09-27 04:20

  • Browse the number:

    209

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Company Profile

Tianjin Newcolour Group

By certification [File Integrity]

Contact:tjgtcr(Mr.)  

Email:

Telephone:

Phone:

Area:Tianjin

Address:Tianjin

Website:http://www.newcolourdyes.com/ http://tjgtcr.sy2000.net/

PRODUCT DETAILS

Properties


Green and black. Black powder. Soluble in water for green light black, solubility of 100 g/L (80 ℃), slightly soluble in ethanol and acetone.

The strong sulfuric acid in the green light for black, dilute red after black precipitation; In nitric acid to dark brown. Dyes and microstructure of sulfuric acid solution 10% red; Add thick sodium hydroxide solution for green light blue. Copper ions in dyeing color shade the green, iron ion a slight change in color. 


Applications


Used in viscose of dyeing and printing. In the cotton knitwear, blankets, flannelette, silk, viscose, silk that the fabric, wool/viscose fiber blend fabrics can be used. Can also be used in leather, paper and electrochemical aluminum color.



Manufacturing Methods 


4-Nitrobenzenamine (2 Moore) diazo, one in acid conditions, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, and then will the nitro reduction, diazotization, again with Benzene-1,3-diamine (2 Moore) coupled.


http://www.newcolourdyes.com/