GENERAL INFORMATION
|
• HS CODE |
3204140000 |
|
• CAS NO |
1937-37-7 |
|
• GRADE |
Technical Grade |
|
• FORMULA |
C34H25N9Na2O7S2 |
|
• MOLECULAR WEIGHT |
781.73 |
PROPERTIES
|
• Appearance |
Black-brown powder |
|
• Solubility(85℃) |
40g/L |
|
• Stability |
Stable under normal temperature |
SPECIFICATIONS
|
• Tue |
Similar to standard |
|
• Intensity |
To standard 100±3 |
|
• Moisture |
≤8% |
|
• Water insoluble substances |
≤0.8% |
|
• Fineness (through 80 mesh sieve residue) |
≤5% |
APPLICATION
• Dye cotton or viscose appears black, high blackness. High dyeing rate, but poor migration, sensitive to salt, slowly warm up and add salt in batches. Can print directly on cotton or viscose. Can also be used in silk, chinlon and fabric dyeing. Used for leather, biological, wood and plastics coloring, as well as black ink raw material.
PACKING
• 25kg/drum
STORAGE AND TRANSPORTATION
• Store in dry and ventilated place, avoid direct sunshine, moisture and heat. Handle carefully during transportation.




