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Direct Black 19

Delivery term:The date of payment from buyers deliver within days
  • 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:

    2020-09-14 17:33

  • Browse the number:

    303

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Company Profile
Tianjin Newcolour Group
By certification [File Integrity]
Contact:

tjgtcr(Mr.)  

Email:

Telephone:

Phone:

Area:

Tianjin

Address:

2105-2106 HUICHENG PLAZA, NO.56 XIANFENG ROAD, DONGLI DISTRICT, TIANJIN, CHINA

Website: http://www.newcolourdyes.com/ http://tjgtcr.zzjbh.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/

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