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Company Name:  Tianjin Shengfan Technology Corporation

Mobile Phone:  86-16600237486

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Product Name:  Direct Red 4BE / Congo Red
Product Details:

Product Name: Direct Red 4BE / Congo Red
C.I. No.: Direct Red 28
CAS NO: 573-58-0
Chemical Formula: C32H22N6Na2O6S2
Molecular Weight: 696.6632 
H.S Code: 32041400
Testing report:

Testing Items Standard Indicator Testing Result
Apprearance Red Powde Red Powde
Color Shade : Similar to standard Similar to standard
Content (%): 100±3 100%
Moisture (%): ≤5.0 2.75
Insolubles (%): ≤1.0 0.45
Conclusion: Qualified

Application:
1. mainly used for cotton,viscose and other cellulose fabric dyeing,with excellent dye-uptake,but migration property is not so good;
2. not used for direct printing,but can be used for discharge printing as ground color.
3. not only used for natural silk, wool and paper coloring,but also used as acid-base indicator.
 

Cick:  424

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