Dyestuff & Pigment
INDIGO BLUE
Code: HG280008
Mr. Zhong
+86-20-81074430
dyechem@gzchem.com
| Item | Standard |
| Appearance | Dark blue granules |
| Color light | Similar as the standard sample |
| Content | ≥ 93.0%、94.0% |
| Moisture | ≤ 1.0% |
| Strength | Equal to 100 percent of standard sample |
| Ph value | 8－9 |
| Content of ferric ions, ppm | ≤300ppm |
