| Customization: | Available |
|---|---|
| CAS No.: | - |
| Colour: | Brown |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Product Name: Direct Red 28
C.I. No.: 22120
CAS No.: 573-58-0
Molecular Formula: C32H22N6Na2O6S2
Molecular Weight: 696.67
Relative Name:
Congo Red,Direct Scarlet 4B,Direct Scarlet 4BE.
Shade: yellow light red powder, tan powder.
Direct Red 28 Physical Properties and light fastness, solubility.
| Direct Red 28 | |
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 2 |
| Washing Fatness | 3 |
| Rubbing fastness(dry) | 3 |
| Rubbing fastness(wet) | 2 |
Direct Red 28 Properties and Applications:
Soluble in water for yellow light red solution, soluble in ethanol for orange, soluble in acetone. In the strong sulfuric acid as dark blue, diluted into shallow blue, blue precipitation. Dyes to acetic acid solution for blue purple, have red light blue precipitation; Add thick sodium hydroxide solution for yellow. This product acid resistance and sun fastness is poor. The acid, alkali is very sensitive. Cellulose fiber of dyeing, the dye absorption rate as well, a 80 ° C affinity when the largest. This article covers the gender is good, hard to sensitive. Dyeing copper ions in colored light yellow dark; Iron ion in a yellow light. Mainly used in viscose, such as cotton, wool, silk cellulose fiber dyeing and not used in printing, also can be used for biological and pulp color.
Package, 25KG/DRUM, CARTON BOX, BAG
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.
Our direct dyes list
| Item | Dye name | C.I.NO. |
| 1 | Direct scarlet 4BS | Direct red 23 |
| 2 | Direct congo red | Direct red 28 |
| 3 | Direct pink 12B | Direct red 31 |
| 4 | Direct yellow R | Direct yellow 11 |
| 5 | Direct chrysophenine GX | Direct yellow 12 |
| 6 | Direct sky blue 5B | Direct blue 15 |
| 7 | Direct Turquoise blue GL | Direct blue 86 |
| 8 | Direct copper blue 2R | Direct blue 151 |
| 9 | Direct brown MM | direct brown 2 |
| 10 | Direct green BE | Direct green 6 |
| 11 | Direct orange S | Direct orange 26 |
| 12 | Direct violet 2B | Direct violet 51 |
| 13 | Direct black G | Direct black 19 |
| 14 | Direct fast black VSF | Direct black 22 |
| 15 | Direct black EX | Direct black 38 |
){kind=link}