• Direct Congo Red 4B

Direct Congo Red 4B

  • C.I.Direct Red 28
  • C.I.22120
  • CAS: 573-58-0
  • Standard Strength: 100%
  • Molecular Formula: C32H22N6Na2O6S2
  • Formula Weight: 696.67

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Physical and Chemical Properties

Appearance: Tan powder

Shade: Similar to standard

Strength: 100%

Insolubility: ≤2%

Moisture: ≤3%

Fineness(60 Mesh Sieve Residue):5%


Fastness

Light

Washing

Water

Crocking

Perspiration

Ironing

 

 

 

 

1-2

Bleaching

Staining

Bleaching

Staining

Dry

Wet

Bleaching

Staining

3-4

2

3-4

2

3-4

2-3

2-3

4

4-5


Application

Dyeing for Cotton and Viscose fiber  

Coloring for Wool, Silk, Paper and Biological

 


Packing

Packed in 25kgs Fiber drum and Carton

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