| CAS No.: | 6473-13-8 |
|---|---|
| Formula: | C44h32n13na3o11s3 |
| Colour: | Black |
| Appearance: | Powder |
| Usage: | Paper, Leather, Textile, Cotton, Silk |
| Application Material: | Cotton, Silk |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier Appearance: blue gray powder. Soluble in water for violet black. The strong sulfuric acid for violet black, dilute black light after brown precipitation; In nitric acid solution for the red light brown in, precipitation. The dye solution to join strong hydrochloric acid have brown light black precipitation; Add thick sodium hydroxide solution for dark blue light red. Mainly used for cotton, viscose, wool/stick,nylon/rayon blended fabric dyeing and printing, also used in leather and paper dyeing.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 4 | 4 | 3 | 3 | ||
| AATCC | 5 | 4-5 | 5-6 | 3 | 3 | ||
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}